Home / 460,027.20-690,040.80-127,603.20

Finding the Fourth Proportional to 460,027.20, 690,040.80 and 127,603.20

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Solution

The fourth proportional to 460,027.20, 690,040.80 and 127,603.20 is: 191,404.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,027.20 : 690,040.80 = 127,603.20 : x
  2. Step 2: Convert to fraction form
    460,027.20/690,040.80 = 127,603.20/x
  3. Step 3: Cross multiply
    460,027.20x = 690,040.80 × 127,603.20
  4. Step 4: Simplify right side
    460,027.20x = 88,051,414,210.56
  5. Step 5: Solve for x
    x = 88,051,414,210.56/460,027.20
  6. Step 6: Final answer
    x = 191,404.80

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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.