Home / 782,339.16-1,079,631.60-442,873.08

Finding the Fourth Proportional to 782,339.16, 1,079,631.60 and 442,873.08

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Solution

The fourth proportional to 782,339.16, 1,079,631.60 and 442,873.08 is: 611,166.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,339.16 : 1,079,631.60 = 442,873.08 : x
  2. Step 2: Convert to fraction form
    782,339.16/1,079,631.60 = 442,873.08/x
  3. Step 3: Cross multiply
    782,339.16x = 1,079,631.60 × 442,873.08
  4. Step 4: Simplify right side
    782,339.16x = 478,139,771,957.33
  5. Step 5: Solve for x
    x = 478,139,771,957.33/782,339.16
  6. Step 6: Final answer
    x = 611,166.87

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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.