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Finding the Fourth Proportional to 498,770.04, 688,386.97 and 283,880.89

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Solution

The fourth proportional to 498,770.04, 688,386.97 and 283,880.89 is: 391,803.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,770.04 : 688,386.97 = 283,880.89 : x
  2. Step 2: Convert to fraction form
    498,770.04/688,386.97 = 283,880.89/x
  3. Step 3: Cross multiply
    498,770.04x = 688,386.97 × 283,880.89
  4. Step 4: Simplify right side
    498,770.04x = 195,419,905,708.00
  5. Step 5: Solve for x
    x = 195,419,905,708.00/498,770.04
  6. Step 6: Final answer
    x = 391,803.62

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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.