Home / 976,790.80-1,465,186.20-445,349.80

Finding the Fourth Proportional to 976,790.80, 1,465,186.20 and 445,349.80

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Solution

The fourth proportional to 976,790.80, 1,465,186.20 and 445,349.80 is: 668,024.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,790.80 : 1,465,186.20 = 445,349.80 : x
  2. Step 2: Convert to fraction form
    976,790.80/1,465,186.20 = 445,349.80/x
  3. Step 3: Cross multiply
    976,790.80x = 1,465,186.20 × 445,349.80
  4. Step 4: Simplify right side
    976,790.80x = 652,520,381,132.76
  5. Step 5: Solve for x
    x = 652,520,381,132.76/976,790.80
  6. Step 6: Final answer
    x = 668,024.70

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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.