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Finding the Fourth Proportional to 748,978,528.80, 1,123,467,793.20 and 658,279,264.80

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Solution

The fourth proportional to 748,978,528.80, 1,123,467,793.20 and 658,279,264.80 is: 987,418,897.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,978,528.80 : 1,123,467,793.20 = 658,279,264.80 : x
  2. Step 2: Convert to fraction form
    748,978,528.80/1,123,467,793.20 = 658,279,264.80/x
  3. Step 3: Cross multiply
    748,978,528.80x = 1,123,467,793.20 × 658,279,264.80
  4. Step 4: Simplify right side
    748,978,528.80x = 739,555,552,934,174,464
  5. Step 5: Solve for x
    x = 739,555,552,934,174,464/748,978,528.80
  6. Step 6: Final answer
    x = 987,418,897.20

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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.