Home / 485,100.65-664,590.27-466,919.16

Finding the Fourth Proportional to 485,100.65, 664,590.27 and 466,919.16

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Solution

The fourth proportional to 485,100.65, 664,590.27 and 466,919.16 is: 639,681.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,100.65 : 664,590.27 = 466,919.16 : x
  2. Step 2: Convert to fraction form
    485,100.65/664,590.27 = 466,919.16/x
  3. Step 3: Cross multiply
    485,100.65x = 664,590.27 × 466,919.16
  4. Step 4: Simplify right side
    485,100.65x = 310,309,927,289.62
  5. Step 5: Solve for x
    x = 310,309,927,289.62/485,100.65
  6. Step 6: Final answer
    x = 639,681.53

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.