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Finding the Fourth Proportional to 518,231.83, 777,762.47 and 268,985.11

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Solution

The fourth proportional to 518,231.83, 777,762.47 and 268,985.11 is: 403,692.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,231.83 : 777,762.47 = 268,985.11 : x
  2. Step 2: Convert to fraction form
    518,231.83/777,762.47 = 268,985.11/x
  3. Step 3: Cross multiply
    518,231.83x = 777,762.47 × 268,985.11
  4. Step 4: Simplify right side
    518,231.83x = 209,206,522,201.90
  5. Step 5: Solve for x
    x = 209,206,522,201.90/518,231.83
  6. Step 6: Final answer
    x = 403,692.92

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1.5x scale

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.