Home / 758,512.60-1,137,761.10-438,460.82

Finding the Fourth Proportional to 758,512.60, 1,137,761.10 and 438,460.82

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Solution

The fourth proportional to 758,512.60, 1,137,761.10 and 438,460.82 is: 657,686.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,512.60 : 1,137,761.10 = 438,460.82 : x
  2. Step 2: Convert to fraction form
    758,512.60/1,137,761.10 = 438,460.82/x
  3. Step 3: Cross multiply
    758,512.60x = 1,137,761.10 × 438,460.82
  4. Step 4: Simplify right side
    758,512.60x = 498,863,664,870.10
  5. Step 5: Solve for x
    x = 498,863,664,870.10/758,512.60
  6. Step 6: Final answer
    x = 657,686.72

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1.5x scale

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.