Home / 861,723.16-1,188,870.15-498,949

Finding the Fourth Proportional to 861,723.16, 1,188,870.15 and 498,949

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Solution

The fourth proportional to 861,723.16, 1,188,870.15 and 498,949 is: 688,371.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,723.16 : 1,188,870.15 = 498,949 : x
  2. Step 2: Convert to fraction form
    861,723.16/1,188,870.15 = 498,949/x
  3. Step 3: Cross multiply
    861,723.16x = 1,188,870.15 × 498,949
  4. Step 4: Simplify right side
    861,723.16x = 593,185,572,472.35
  5. Step 5: Solve for x
    x = 593,185,572,472.35/861,723.16
  6. Step 6: Final answer
    x = 688,371.39

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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.