Home / 498,947.18-748,444.85-139,117.34

Finding the Fourth Proportional to 498,947.18, 748,444.85 and 139,117.34

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Solution

The fourth proportional to 498,947.18, 748,444.85 and 139,117.34 is: 208,682.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,947.18 : 748,444.85 = 139,117.34 : x
  2. Step 2: Convert to fraction form
    498,947.18/748,444.85 = 139,117.34/x
  3. Step 3: Cross multiply
    498,947.18x = 748,444.85 × 139,117.34
  4. Step 4: Simplify right side
    498,947.18x = 104,121,652,230.89
  5. Step 5: Solve for x
    x = 104,121,652,230.89/498,947.18
  6. Step 6: Final answer
    x = 208,682.72

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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.