Home / 820,057.52-1,131,539.20-475,814.53

Finding the Fourth Proportional to 820,057.52, 1,131,539.20 and 475,814.53

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Solution

The fourth proportional to 820,057.52, 1,131,539.20 and 475,814.53 is: 656,542.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,057.52 : 1,131,539.20 = 475,814.53 : x
  2. Step 2: Convert to fraction form
    820,057.52/1,131,539.20 = 475,814.53/x
  3. Step 3: Cross multiply
    820,057.52x = 1,131,539.20 × 475,814.53
  4. Step 4: Simplify right side
    820,057.52x = 538,402,792,624.58
  5. Step 5: Solve for x
    x = 538,402,792,624.58/820,057.52
  6. Step 6: Final answer
    x = 656,542.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.