Home / 861,722.16-1,188,868.77-498,948

Finding the Fourth Proportional to 861,722.16, 1,188,868.77 and 498,948

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Solution

The fourth proportional to 861,722.16, 1,188,868.77 and 498,948 is: 688,370.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,722.16 : 1,188,868.77 = 498,948 : x
  2. Step 2: Convert to fraction form
    861,722.16/1,188,868.77 = 498,948/x
  3. Step 3: Cross multiply
    861,722.16x = 1,188,868.77 × 498,948
  4. Step 4: Simplify right side
    861,722.16x = 593,183,695,053.96
  5. Step 5: Solve for x
    x = 593,183,695,053.96/861,722.16
  6. Step 6: Final answer
    x = 688,370.01

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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.