Home / 741,702.64-1,023,428.34-487,369.12

Finding the Fourth Proportional to 741,702.64, 1,023,428.34 and 487,369.12

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Solution

The fourth proportional to 741,702.64, 1,023,428.34 and 487,369.12 is: 672,489.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    741,702.64 : 1,023,428.34 = 487,369.12 : x
  2. Step 2: Convert to fraction form
    741,702.64/1,023,428.34 = 487,369.12/x
  3. Step 3: Cross multiply
    741,702.64x = 1,023,428.34 × 487,369.12
  4. Step 4: Simplify right side
    741,702.64x = 498,787,369,448.86
  5. Step 5: Solve for x
    x = 498,787,369,448.86/741,702.64
  6. Step 6: Final answer
    x = 672,489.68

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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.