Home / 862,260.91-1,189,956.77-480,287.86

Finding the Fourth Proportional to 862,260.91, 1,189,956.77 and 480,287.86

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Solution

The fourth proportional to 862,260.91, 1,189,956.77 and 480,287.86 is: 662,817.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,260.91 : 1,189,956.77 = 480,287.86 : x
  2. Step 2: Convert to fraction form
    862,260.91/1,189,956.77 = 480,287.86/x
  3. Step 3: Cross multiply
    862,260.91x = 1,189,956.77 × 480,287.86
  4. Step 4: Simplify right side
    862,260.91x = 571,521,788,154.37
  5. Step 5: Solve for x
    x = 571,521,788,154.37/862,260.91
  6. Step 6: Final answer
    x = 662,817.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.