Home / 756,292.50-1,134,438.72-518,915.52

Finding the Fourth Proportional to 756,292.50, 1,134,438.72 and 518,915.52

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Solution

The fourth proportional to 756,292.50, 1,134,438.72 and 518,915.52 is: 778,373.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,292.50 : 1,134,438.72 = 518,915.52 : x
  2. Step 2: Convert to fraction form
    756,292.50/1,134,438.72 = 518,915.52/x
  3. Step 3: Cross multiply
    756,292.50x = 1,134,438.72 × 518,915.52
  4. Step 4: Simplify right side
    756,292.50x = 588,677,858,296.94
  5. Step 5: Solve for x
    x = 588,677,858,296.94/756,292.50
  6. Step 6: Final answer
    x = 778,373.26

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Double scale
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Similar ratio
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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.