Home / 469,929.38-648,839.56-288,884.05

Finding the Fourth Proportional to 469,929.38, 648,839.56 and 288,884.05

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Solution

The fourth proportional to 469,929.38, 648,839.56 and 288,884.05 is: 398,867.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,929.38 : 648,839.56 = 288,884.05 : x
  2. Step 2: Convert to fraction form
    469,929.38/648,839.56 = 288,884.05/x
  3. Step 3: Cross multiply
    469,929.38x = 648,839.56 × 288,884.05
  4. Step 4: Simplify right side
    469,929.38x = 187,439,399,893.02
  5. Step 5: Solve for x
    x = 187,439,399,893.02/469,929.38
  6. Step 6: Final answer
    x = 398,867.17

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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.