Home / 752,550.45-1,128,814.21-521,526.30

Finding the Fourth Proportional to 752,550.45, 1,128,814.21 and 521,526.30

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Solution

The fourth proportional to 752,550.45, 1,128,814.21 and 521,526.30 is: 782,281.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,550.45 : 1,128,814.21 = 521,526.30 : x
  2. Step 2: Convert to fraction form
    752,550.45/1,128,814.21 = 521,526.30/x
  3. Step 3: Cross multiply
    752,550.45x = 1,128,814.21 × 521,526.30
  4. Step 4: Simplify right side
    752,550.45x = 588,706,298,328.72
  5. Step 5: Solve for x
    x = 588,706,298,328.72/752,550.45
  6. Step 6: Final answer
    x = 782,281.50

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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.