Home / 678,394.20-1,015,841.70-538,426.20

Finding the Fourth Proportional to 678,394.20, 1,015,841.70 and 538,426.20

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Solution

The fourth proportional to 678,394.20, 1,015,841.70 and 538,426.20 is: 806,250.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,394.20 : 1,015,841.70 = 538,426.20 : x
  2. Step 2: Convert to fraction form
    678,394.20/1,015,841.70 = 538,426.20/x
  3. Step 3: Cross multiply
    678,394.20x = 1,015,841.70 × 538,426.20
  4. Step 4: Simplify right side
    678,394.20x = 546,955,786,332.54
  5. Step 5: Solve for x
    x = 546,955,786,332.54/678,394.20
  6. Step 6: Final answer
    x = 806,250.68

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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.