Home / 908,936.10-1,363,404.15-309,698.10

Finding the Fourth Proportional to 908,936.10, 1,363,404.15 and 309,698.10

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Solution

The fourth proportional to 908,936.10, 1,363,404.15 and 309,698.10 is: 464,547.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,936.10 : 1,363,404.15 = 309,698.10 : x
  2. Step 2: Convert to fraction form
    908,936.10/1,363,404.15 = 309,698.10/x
  3. Step 3: Cross multiply
    908,936.10x = 1,363,404.15 × 309,698.10
  4. Step 4: Simplify right side
    908,936.10x = 422,243,674,787.12
  5. Step 5: Solve for x
    x = 422,243,674,787.12/908,936.10
  6. Step 6: Final answer
    x = 464,547.15

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.