Home / 636,291.02-878,086.64-345,902.52

Finding the Fourth Proportional to 636,291.02, 878,086.64 and 345,902.52

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Solution

The fourth proportional to 636,291.02, 878,086.64 and 345,902.52 is: 477,348.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,291.02 : 878,086.64 = 345,902.52 : x
  2. Step 2: Convert to fraction form
    636,291.02/878,086.64 = 345,902.52/x
  3. Step 3: Cross multiply
    636,291.02x = 878,086.64 × 345,902.52
  4. Step 4: Simplify right side
    636,291.02x = 303,732,385,711.91
  5. Step 5: Solve for x
    x = 303,732,385,711.91/636,291.02
  6. Step 6: Final answer
    x = 477,348.22

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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.