Home / 756,662.46-1,044,008.55-498,510.78

Finding the Fourth Proportional to 756,662.46, 1,044,008.55 and 498,510.78

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Solution

The fourth proportional to 756,662.46, 1,044,008.55 and 498,510.78 is: 687,822.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,662.46 : 1,044,008.55 = 498,510.78 : x
  2. Step 2: Convert to fraction form
    756,662.46/1,044,008.55 = 498,510.78/x
  3. Step 3: Cross multiply
    756,662.46x = 1,044,008.55 × 498,510.78
  4. Step 4: Simplify right side
    756,662.46x = 520,449,516,587.17
  5. Step 5: Solve for x
    x = 520,449,516,587.17/756,662.46
  6. Step 6: Final answer
    x = 687,822.57

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Double scale
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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.