Home / 758,511.60-1,137,759.60-438,459.82

Finding the Fourth Proportional to 758,511.60, 1,137,759.60 and 438,459.82

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Solution

The fourth proportional to 758,511.60, 1,137,759.60 and 438,459.82 is: 657,685.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,511.60 : 1,137,759.60 = 438,459.82 : x
  2. Step 2: Convert to fraction form
    758,511.60/1,137,759.60 = 438,459.82/x
  3. Step 3: Cross multiply
    758,511.60x = 1,137,759.60 × 438,459.82
  4. Step 4: Simplify right side
    758,511.60x = 498,861,869,627.80
  5. Step 5: Solve for x
    x = 498,861,869,627.80/758,511.60
  6. Step 6: Final answer
    x = 657,685.22

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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.