Home / 976,781.80-1,465,172.70-445,340.80

Finding the Fourth Proportional to 976,781.80, 1,465,172.70 and 445,340.80

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Solution

The fourth proportional to 976,781.80, 1,465,172.70 and 445,340.80 is: 668,011.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,781.80 : 1,465,172.70 = 445,340.80 : x
  2. Step 2: Convert to fraction form
    976,781.80/1,465,172.70 = 445,340.80/x
  3. Step 3: Cross multiply
    976,781.80x = 1,465,172.70 × 445,340.80
  4. Step 4: Simplify right side
    976,781.80x = 652,501,182,356.16
  5. Step 5: Solve for x
    x = 652,501,182,356.16/976,781.80
  6. Step 6: Final answer
    x = 668,011.20

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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.