Home / 684,892.10-1,027,338.15-310,915.10

Finding the Fourth Proportional to 684,892.10, 1,027,338.15 and 310,915.10

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Solution

The fourth proportional to 684,892.10, 1,027,338.15 and 310,915.10 is: 466,372.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,892.10 : 1,027,338.15 = 310,915.10 : x
  2. Step 2: Convert to fraction form
    684,892.10/1,027,338.15 = 310,915.10/x
  3. Step 3: Cross multiply
    684,892.10x = 1,027,338.15 × 310,915.10
  4. Step 4: Simplify right side
    684,892.10x = 319,414,943,641.07
  5. Step 5: Solve for x
    x = 319,414,943,641.07/684,892.10
  6. Step 6: Final answer
    x = 466,372.65

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Double scale
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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.