Home / 498,748.79-688,277.70-283,902.66

Finding the Fourth Proportional to 498,748.79, 688,277.70 and 283,902.66

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Solution

The fourth proportional to 498,748.79, 688,277.70 and 283,902.66 is: 391,788.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,748.79 : 688,277.70 = 283,902.66 : x
  2. Step 2: Convert to fraction form
    498,748.79/688,277.70 = 283,902.66/x
  3. Step 3: Cross multiply
    498,748.79x = 688,277.70 × 283,902.66
  4. Step 4: Simplify right side
    498,748.79x = 195,403,869,848.68
  5. Step 5: Solve for x
    x = 195,403,869,848.68/498,748.79
  6. Step 6: Final answer
    x = 391,788.16

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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.