Home / 908,438.10-1,362,657.15-309,200.10

Finding the Fourth Proportional to 908,438.10, 1,362,657.15 and 309,200.10

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Solution

The fourth proportional to 908,438.10, 1,362,657.15 and 309,200.10 is: 463,800.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,438.10 : 1,362,657.15 = 309,200.10 : x
  2. Step 2: Convert to fraction form
    908,438.10/1,362,657.15 = 309,200.10/x
  3. Step 3: Cross multiply
    908,438.10x = 1,362,657.15 × 309,200.10
  4. Step 4: Simplify right side
    908,438.10x = 421,333,727,045.72
  5. Step 5: Solve for x
    x = 421,333,727,045.72/908,438.10
  6. Step 6: Final answer
    x = 463,800.15

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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.