Home / 437,330.40-656,032.08-320,456.16

Finding the Fourth Proportional to 437,330.40, 656,032.08 and 320,456.16

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Solution

The fourth proportional to 437,330.40, 656,032.08 and 320,456.16 is: 480,710.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,330.40 : 656,032.08 = 320,456.16 : x
  2. Step 2: Convert to fraction form
    437,330.40/656,032.08 = 320,456.16/x
  3. Step 3: Cross multiply
    437,330.40x = 656,032.08 × 320,456.16
  4. Step 4: Simplify right side
    437,330.40x = 210,229,521,193.61
  5. Step 5: Solve for x
    x = 210,229,521,193.61/437,330.40
  6. Step 6: Final answer
    x = 480,710.97

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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.