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Finding the Fourth Proportional to 822,610.20, 1,234,304.10 and 349,699.80

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Solution

The fourth proportional to 822,610.20, 1,234,304.10 and 349,699.80 is: 524,714.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,610.20 : 1,234,304.10 = 349,699.80 : x
  2. Step 2: Convert to fraction form
    822,610.20/1,234,304.10 = 349,699.80/x
  3. Step 3: Cross multiply
    822,610.20x = 1,234,304.10 × 349,699.80
  4. Step 4: Simplify right side
    822,610.20x = 431,635,896,909.18
  5. Step 5: Solve for x
    x = 431,635,896,909.18/822,610.20
  6. Step 6: Final answer
    x = 524,714.98

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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.