Home / 743,562.91-1,026,117.85-421,294.80

Finding the Fourth Proportional to 743,562.91, 1,026,117.85 and 421,294.80

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Solution

The fourth proportional to 743,562.91, 1,026,117.85 and 421,294.80 is: 581,387.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,562.91 : 1,026,117.85 = 421,294.80 : x
  2. Step 2: Convert to fraction form
    743,562.91/1,026,117.85 = 421,294.80/x
  3. Step 3: Cross multiply
    743,562.91x = 1,026,117.85 × 421,294.80
  4. Step 4: Simplify right side
    743,562.91x = 432,298,108,134.05
  5. Step 5: Solve for x
    x = 432,298,108,134.05/743,562.91
  6. Step 6: Final answer
    x = 581,387.40

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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.