Home / 743,285.40-1,025,695.10-403,753.24

Finding the Fourth Proportional to 743,285.40, 1,025,695.10 and 403,753.24

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Solution

The fourth proportional to 743,285.40, 1,025,695.10 and 403,753.24 is: 557,158.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,285.40 : 1,025,695.10 = 403,753.24 : x
  2. Step 2: Convert to fraction form
    743,285.40/1,025,695.10 = 403,753.24/x
  3. Step 3: Cross multiply
    743,285.40x = 1,025,695.10 × 403,753.24
  4. Step 4: Simplify right side
    743,285.40x = 414,127,719,877.12
  5. Step 5: Solve for x
    x = 414,127,719,877.12/743,285.40
  6. Step 6: Final answer
    x = 557,158.42

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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.