Home / 653,643.20-980,521.28-180,328.56

Finding the Fourth Proportional to 653,643.20, 980,521.28 and 180,328.56

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Solution

The fourth proportional to 653,643.20, 980,521.28 and 180,328.56 is: 270,508.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,643.20 : 980,521.28 = 180,328.56 : x
  2. Step 2: Convert to fraction form
    653,643.20/980,521.28 = 180,328.56/x
  3. Step 3: Cross multiply
    653,643.20x = 980,521.28 × 180,328.56
  4. Step 4: Simplify right side
    653,643.20x = 176,815,993,099.17
  5. Step 5: Solve for x
    x = 176,815,993,099.17/653,643.20
  6. Step 6: Final answer
    x = 270,508.42

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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.