Home / 929,753.66-1,393,312.08-389,427.68

Finding the Fourth Proportional to 929,753.66, 1,393,312.08 and 389,427.68

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Solution

The fourth proportional to 929,753.66, 1,393,312.08 and 389,427.68 is: 583,589.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,753.66 : 1,393,312.08 = 389,427.68 : x
  2. Step 2: Convert to fraction form
    929,753.66/1,393,312.08 = 389,427.68/x
  3. Step 3: Cross multiply
    929,753.66x = 1,393,312.08 × 389,427.68
  4. Step 4: Simplify right side
    929,753.66x = 542,594,290,830.37
  5. Step 5: Solve for x
    x = 542,594,290,830.37/929,753.66
  6. Step 6: Final answer
    x = 583,589.30

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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.