Home / 747,781.80-1,120,866.90-362,715.30

Finding the Fourth Proportional to 747,781.80, 1,120,866.90 and 362,715.30

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Solution

The fourth proportional to 747,781.80, 1,120,866.90 and 362,715.30 is: 543,682.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,781.80 : 1,120,866.90 = 362,715.30 : x
  2. Step 2: Convert to fraction form
    747,781.80/1,120,866.90 = 362,715.30/x
  3. Step 3: Cross multiply
    747,781.80x = 1,120,866.90 × 362,715.30
  4. Step 4: Simplify right side
    747,781.80x = 406,555,573,893.57
  5. Step 5: Solve for x
    x = 406,555,573,893.57/747,781.80
  6. Step 6: Final answer
    x = 543,682.09

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Double scale
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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.