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Finding the Fourth Proportional to 658,747.80, 988,180.20 and 274,411.80

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Solution

The fourth proportional to 658,747.80, 988,180.20 and 274,411.80 is: 411,642.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,747.80 : 988,180.20 = 274,411.80 : x
  2. Step 2: Convert to fraction form
    658,747.80/988,180.20 = 274,411.80/x
  3. Step 3: Cross multiply
    658,747.80x = 988,180.20 × 274,411.80
  4. Step 4: Simplify right side
    658,747.80x = 271,168,307,406.36
  5. Step 5: Solve for x
    x = 271,168,307,406.36/658,747.80
  6. Step 6: Final answer
    x = 411,642.07

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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.