Home / 459,605.12-689,402.52-179,319.20

Finding the Fourth Proportional to 459,605.12, 689,402.52 and 179,319.20

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Solution

The fourth proportional to 459,605.12, 689,402.52 and 179,319.20 is: 268,976.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,605.12 : 689,402.52 = 179,319.20 : x
  2. Step 2: Convert to fraction form
    459,605.12/689,402.52 = 179,319.20/x
  3. Step 3: Cross multiply
    459,605.12x = 689,402.52 × 179,319.20
  4. Step 4: Simplify right side
    459,605.12x = 123,623,108,364.38
  5. Step 5: Solve for x
    x = 123,623,108,364.38/459,605.12
  6. Step 6: Final answer
    x = 268,976.79

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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.