Home / 653,421.13-980,328.53-204,123.85

Finding the Fourth Proportional to 653,421.13, 980,328.53 and 204,123.85

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Solution

The fourth proportional to 653,421.13, 980,328.53 and 204,123.85 is: 306,247.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,421.13 : 980,328.53 = 204,123.85 : x
  2. Step 2: Convert to fraction form
    653,421.13/980,328.53 = 204,123.85/x
  3. Step 3: Cross multiply
    653,421.13x = 980,328.53 × 204,123.85
  4. Step 4: Simplify right side
    653,421.13x = 200,108,433,808.44
  5. Step 5: Solve for x
    x = 200,108,433,808.44/653,421.13
  6. Step 6: Final answer
    x = 306,247.26

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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.