Home / 782,316.65-1,079,765.44-476,493.86

Finding the Fourth Proportional to 782,316.65, 1,079,765.44 and 476,493.86

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Solution

The fourth proportional to 782,316.65, 1,079,765.44 and 476,493.86 is: 657,664.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,316.65 : 1,079,765.44 = 476,493.86 : x
  2. Step 2: Convert to fraction form
    782,316.65/1,079,765.44 = 476,493.86/x
  3. Step 3: Cross multiply
    782,316.65x = 1,079,765.44 × 476,493.86
  4. Step 4: Simplify right side
    782,316.65x = 514,501,597,318.32
  5. Step 5: Solve for x
    x = 514,501,597,318.32/782,316.65
  6. Step 6: Final answer
    x = 657,664.13

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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.