Home / 902,503.14-1,245,488.86-515,381.74

Finding the Fourth Proportional to 902,503.14, 1,245,488.86 and 515,381.74

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Solution

The fourth proportional to 902,503.14, 1,245,488.86 and 515,381.74 is: 711,246.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    902,503.14 : 1,245,488.86 = 515,381.74 : x
  2. Step 2: Convert to fraction form
    902,503.14/1,245,488.86 = 515,381.74/x
  3. Step 3: Cross multiply
    902,503.14x = 1,245,488.86 × 515,381.74
  4. Step 4: Simplify right side
    902,503.14x = 641,902,215,817.42
  5. Step 5: Solve for x
    x = 641,902,215,817.42/902,503.14
  6. Step 6: Final answer
    x = 711,246.52

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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.