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Finding the Fourth Proportional to 653,299.55, 980,085.39 and 329,269.76

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Solution

The fourth proportional to 653,299.55, 980,085.39 and 329,269.76 is: 493,973.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,299.55 : 980,085.39 = 329,269.76 : x
  2. Step 2: Convert to fraction form
    653,299.55/980,085.39 = 329,269.76/x
  3. Step 3: Cross multiply
    653,299.55x = 980,085.39 × 329,269.76
  4. Step 4: Simplify right side
    653,299.55x = 322,712,479,379.49
  5. Step 5: Solve for x
    x = 322,712,479,379.49/653,299.55
  6. Step 6: Final answer
    x = 493,973.21

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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.