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Finding the Fourth Proportional to 658,389.34, 908,574.49 and 368,000.52

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Solution

The fourth proportional to 658,389.34, 908,574.49 and 368,000.52 is: 507,839.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,389.34 : 908,574.49 = 368,000.52 : x
  2. Step 2: Convert to fraction form
    658,389.34/908,574.49 = 368,000.52/x
  3. Step 3: Cross multiply
    658,389.34x = 908,574.49 × 368,000.52
  4. Step 4: Simplify right side
    658,389.34x = 334,355,884,778.74
  5. Step 5: Solve for x
    x = 334,355,884,778.74/658,389.34
  6. Step 6: Final answer
    x = 507,839.15

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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.