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Finding the Fourth Proportional to 623,726.70, 860,743.17 and 337,246.80

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Solution

The fourth proportional to 623,726.70, 860,743.17 and 337,246.80 is: 465,400.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,726.70 : 860,743.17 = 337,246.80 : x
  2. Step 2: Convert to fraction form
    623,726.70/860,743.17 = 337,246.80/x
  3. Step 3: Cross multiply
    623,726.70x = 860,743.17 × 337,246.80
  4. Step 4: Simplify right side
    623,726.70x = 290,282,879,704.36
  5. Step 5: Solve for x
    x = 290,282,879,704.36/623,726.70
  6. Step 6: Final answer
    x = 465,400.76

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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.