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Finding the Fourth Proportional to 521,302.80, 783,624.60 and 484,323.60

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Solution

The fourth proportional to 521,302.80, 783,624.60 and 484,323.60 is: 728,037.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,302.80 : 783,624.60 = 484,323.60 : x
  2. Step 2: Convert to fraction form
    521,302.80/783,624.60 = 484,323.60/x
  3. Step 3: Cross multiply
    521,302.80x = 783,624.60 × 484,323.60
  4. Step 4: Simplify right side
    521,302.80x = 379,527,887,320.56
  5. Step 5: Solve for x
    x = 379,527,887,320.56/521,302.80
  6. Step 6: Final answer
    x = 728,037.31

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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.