Home / 905,941.76-1,250,215.68-498,060.80

Finding the Fourth Proportional to 905,941.76, 1,250,215.68 and 498,060.80

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Solution

The fourth proportional to 905,941.76, 1,250,215.68 and 498,060.80 is: 687,332.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,941.76 : 1,250,215.68 = 498,060.80 : x
  2. Step 2: Convert to fraction form
    905,941.76/1,250,215.68 = 498,060.80/x
  3. Step 3: Cross multiply
    905,941.76x = 1,250,215.68 × 498,060.80
  4. Step 4: Simplify right side
    905,941.76x = 622,683,421,753.34
  5. Step 5: Solve for x
    x = 622,683,421,753.34/905,941.76
  6. Step 6: Final answer
    x = 687,332.73

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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.