Home / 485,123.24-727,762.62-204,681.80

Finding the Fourth Proportional to 485,123.24, 727,762.62 and 204,681.80

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Solution

The fourth proportional to 485,123.24, 727,762.62 and 204,681.80 is: 307,055.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,123.24 : 727,762.62 = 204,681.80 : x
  2. Step 2: Convert to fraction form
    485,123.24/727,762.62 = 204,681.80/x
  3. Step 3: Cross multiply
    485,123.24x = 727,762.62 × 204,681.80
  4. Step 4: Simplify right side
    485,123.24x = 148,959,763,034.32
  5. Step 5: Solve for x
    x = 148,959,763,034.32/485,123.24
  6. Step 6: Final answer
    x = 307,055.51

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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.