Home / 459,780.91-689,670.69-144,262.42

Finding the Fourth Proportional to 459,780.91, 689,670.69 and 144,262.42

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Solution

The fourth proportional to 459,780.91, 689,670.69 and 144,262.42 is: 216,393.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,780.91 : 689,670.69 = 144,262.42 : x
  2. Step 2: Convert to fraction form
    459,780.91/689,670.69 = 144,262.42/x
  3. Step 3: Cross multiply
    459,780.91x = 689,670.69 × 144,262.42
  4. Step 4: Simplify right side
    459,780.91x = 99,493,562,742.47
  5. Step 5: Solve for x
    x = 99,493,562,742.47/459,780.91
  6. Step 6: Final answer
    x = 216,393.42

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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.