Home / 499,125.90-688,798.82-272,771.40

Finding the Fourth Proportional to 499,125.90, 688,798.82 and 272,771.40

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Solution

The fourth proportional to 499,125.90, 688,798.82 and 272,771.40 is: 376,427.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,125.90 : 688,798.82 = 272,771.40 : x
  2. Step 2: Convert to fraction form
    499,125.90/688,798.82 = 272,771.40/x
  3. Step 3: Cross multiply
    499,125.90x = 688,798.82 × 272,771.40
  4. Step 4: Simplify right side
    499,125.90x = 187,884,618,449.75
  5. Step 5: Solve for x
    x = 187,884,618,449.75/499,125.90
  6. Step 6: Final answer
    x = 376,427.31

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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.