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Finding the Fourth Proportional to 664,329.80, 996,494.70 and 571,017.80

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Solution

The fourth proportional to 664,329.80, 996,494.70 and 571,017.80 is: 856,526.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,329.80 : 996,494.70 = 571,017.80 : x
  2. Step 2: Convert to fraction form
    664,329.80/996,494.70 = 571,017.80/x
  3. Step 3: Cross multiply
    664,329.80x = 996,494.70 × 571,017.80
  4. Step 4: Simplify right side
    664,329.80x = 569,016,211,305.66
  5. Step 5: Solve for x
    x = 569,016,211,305.66/664,329.80
  6. Step 6: Final answer
    x = 856,526.70

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Double scale
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Similar ratio
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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.