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Finding the Fourth Proportional to 575,739.98, 864,358.33 and 442,713.65

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Solution

The fourth proportional to 575,739.98, 864,358.33 and 442,713.65 is: 664,645.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,739.98 : 864,358.33 = 442,713.65 : x
  2. Step 2: Convert to fraction form
    575,739.98/864,358.33 = 442,713.65/x
  3. Step 3: Cross multiply
    575,739.98x = 864,358.33 × 442,713.65
  4. Step 4: Simplify right side
    575,739.98x = 382,663,230,823.16
  5. Step 5: Solve for x
    x = 382,663,230,823.16/575,739.98
  6. Step 6: Final answer
    x = 664,645.93

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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.