Home / 389,059.44-583,589.16-300,442.20

Finding the Fourth Proportional to 389,059.44, 583,589.16 and 300,442.20

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Solution

The fourth proportional to 389,059.44, 583,589.16 and 300,442.20 is: 450,663.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,059.44 : 583,589.16 = 300,442.20 : x
  2. Step 2: Convert to fraction form
    389,059.44/583,589.16 = 300,442.20/x
  3. Step 3: Cross multiply
    389,059.44x = 583,589.16 × 300,442.20
  4. Step 4: Simplify right side
    389,059.44x = 175,334,811,126.55
  5. Step 5: Solve for x
    x = 175,334,811,126.55/389,059.44
  6. Step 6: Final answer
    x = 450,663.30

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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.