Home / 782,320.96-1,079,565.60-480,456.64

Finding the Fourth Proportional to 782,320.96, 1,079,565.60 and 480,456.64

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Solution

The fourth proportional to 782,320.96, 1,079,565.60 and 480,456.64 is: 663,007.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,320.96 : 1,079,565.60 = 480,456.64 : x
  2. Step 2: Convert to fraction form
    782,320.96/1,079,565.60 = 480,456.64/x
  3. Step 3: Cross multiply
    782,320.96x = 1,079,565.60 × 480,456.64
  4. Step 4: Simplify right side
    782,320.96x = 518,684,460,835.58
  5. Step 5: Solve for x
    x = 518,684,460,835.58/782,320.96
  6. Step 6: Final answer
    x = 663,007.24

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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.