Home / 729,680.76-1,006,883.05-423,697.50

Finding the Fourth Proportional to 729,680.76, 1,006,883.05 and 423,697.50

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Solution

The fourth proportional to 729,680.76, 1,006,883.05 and 423,697.50 is: 584,658.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,680.76 : 1,006,883.05 = 423,697.50 : x
  2. Step 2: Convert to fraction form
    729,680.76/1,006,883.05 = 423,697.50/x
  3. Step 3: Cross multiply
    729,680.76x = 1,006,883.05 × 423,697.50
  4. Step 4: Simplify right side
    729,680.76x = 426,613,831,077.38
  5. Step 5: Solve for x
    x = 426,613,831,077.38/729,680.76
  6. Step 6: Final answer
    x = 584,658.19

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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.