Home / 564,114.14-778,464.15-309,463.10

Finding the Fourth Proportional to 564,114.14, 778,464.15 and 309,463.10

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Solution

The fourth proportional to 564,114.14, 778,464.15 and 309,463.10 is: 427,051.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,114.14 : 778,464.15 = 309,463.10 : x
  2. Step 2: Convert to fraction form
    564,114.14/778,464.15 = 309,463.10/x
  3. Step 3: Cross multiply
    564,114.14x = 778,464.15 × 309,463.10
  4. Step 4: Simplify right side
    564,114.14x = 240,905,925,205.54
  5. Step 5: Solve for x
    x = 240,905,925,205.54/564,114.14
  6. Step 6: Final answer
    x = 427,051.74

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.