Home / 925,021.92-1,387,513.12-426,385.92

Finding the Fourth Proportional to 925,021.92, 1,387,513.12 and 426,385.92

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Solution

The fourth proportional to 925,021.92, 1,387,513.12 and 426,385.92 is: 639,569.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    925,021.92 : 1,387,513.12 = 426,385.92 : x
  2. Step 2: Convert to fraction form
    925,021.92/1,387,513.12 = 426,385.92/x
  3. Step 3: Cross multiply
    925,021.92x = 1,387,513.12 × 426,385.92
  4. Step 4: Simplify right side
    925,021.92x = 591,616,058,183.27
  5. Step 5: Solve for x
    x = 591,616,058,183.27/925,021.92
  6. Step 6: Final answer
    x = 639,569.77

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Double scale
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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.