Home / 459,964.48-689,843.04-127,566.40

Finding the Fourth Proportional to 459,964.48, 689,843.04 and 127,566.40

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Solution

The fourth proportional to 459,964.48, 689,843.04 and 127,566.40 is: 191,320.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,964.48 : 689,843.04 = 127,566.40 : x
  2. Step 2: Convert to fraction form
    459,964.48/689,843.04 = 127,566.40/x
  3. Step 3: Cross multiply
    459,964.48x = 689,843.04 × 127,566.40
  4. Step 4: Simplify right side
    459,964.48x = 88,000,793,177.86
  5. Step 5: Solve for x
    x = 88,000,793,177.86/459,964.48
  6. Step 6: Final answer
    x = 191,320.85

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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.