Home / 758,708.10-1,137,879.90-438,166.80

Finding the Fourth Proportional to 758,708.10, 1,137,879.90 and 438,166.80

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Solution

The fourth proportional to 758,708.10, 1,137,879.90 and 438,166.80 is: 657,144.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,708.10 : 1,137,879.90 = 438,166.80 : x
  2. Step 2: Convert to fraction form
    758,708.10/1,137,879.90 = 438,166.80/x
  3. Step 3: Cross multiply
    758,708.10x = 1,137,879.90 × 438,166.80
  4. Step 4: Simplify right side
    758,708.10x = 498,581,194,567.32
  5. Step 5: Solve for x
    x = 498,581,194,567.32/758,708.10
  6. Step 6: Final answer
    x = 657,144.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.