Home / 709,423.39-1,064,555.28-664,538.86

Finding the Fourth Proportional to 709,423.39, 1,064,555.28 and 664,538.86

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Solution

The fourth proportional to 709,423.39, 1,064,555.28 and 664,538.86 is: 997,201.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,423.39 : 1,064,555.28 = 664,538.86 : x
  2. Step 2: Convert to fraction form
    709,423.39/1,064,555.28 = 664,538.86/x
  3. Step 3: Cross multiply
    709,423.39x = 1,064,555.28 × 664,538.86
  4. Step 4: Simplify right side
    709,423.39x = 707,438,352,383.83
  5. Step 5: Solve for x
    x = 707,438,352,383.83/709,423.39
  6. Step 6: Final answer
    x = 997,201.90

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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.