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Finding the Fourth Proportional to 498,566.44, 688,012.89 and 283,701.89

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Solution

The fourth proportional to 498,566.44, 688,012.89 and 283,701.89 is: 391,503.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,566.44 : 688,012.89 = 283,701.89 : x
  2. Step 2: Convert to fraction form
    498,566.44/688,012.89 = 283,701.89/x
  3. Step 3: Cross multiply
    498,566.44x = 688,012.89 × 283,701.89
  4. Step 4: Simplify right side
    498,566.44x = 195,190,557,893.51
  5. Step 5: Solve for x
    x = 195,190,557,893.51/498,566.44
  6. Step 6: Final answer
    x = 391,503.60

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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.