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Finding the Fourth Proportional to 658,613.93, 908,875.40 and 372,127.87

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Solution

The fourth proportional to 658,613.93, 908,875.40 and 372,127.87 is: 513,529.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,613.93 : 908,875.40 = 372,127.87 : x
  2. Step 2: Convert to fraction form
    658,613.93/908,875.40 = 372,127.87/x
  3. Step 3: Cross multiply
    658,613.93x = 908,875.40 × 372,127.87
  4. Step 4: Simplify right side
    658,613.93x = 338,217,861,222.70
  5. Step 5: Solve for x
    x = 338,217,861,222.70/658,613.93
  6. Step 6: Final answer
    x = 513,529.77

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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.