Home / 976,822.80-1,465,234.20-445,381.80

Finding the Fourth Proportional to 976,822.80, 1,465,234.20 and 445,381.80

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Solution

The fourth proportional to 976,822.80, 1,465,234.20 and 445,381.80 is: 668,072.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,822.80 : 1,465,234.20 = 445,381.80 : x
  2. Step 2: Convert to fraction form
    976,822.80/1,465,234.20 = 445,381.80/x
  3. Step 3: Cross multiply
    976,822.80x = 1,465,234.20 × 445,381.80
  4. Step 4: Simplify right side
    976,822.80x = 652,588,645,417.56
  5. Step 5: Solve for x
    x = 652,588,645,417.56/976,822.80
  6. Step 6: Final answer
    x = 668,072.70

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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.