Home / 977,175.40-1,465,763.10-809,213.80

Finding the Fourth Proportional to 977,175.40, 1,465,763.10 and 809,213.80

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Solution

The fourth proportional to 977,175.40, 1,465,763.10 and 809,213.80 is: 1,213,820.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,175.40 : 1,465,763.10 = 809,213.80 : x
  2. Step 2: Convert to fraction form
    977,175.40/1,465,763.10 = 809,213.80/x
  3. Step 3: Cross multiply
    977,175.40x = 1,465,763.10 × 809,213.80
  4. Step 4: Simplify right side
    977,175.40x = 1,186,115,728,050.78
  5. Step 5: Solve for x
    x = 1,186,115,728,050.78/977,175.40
  6. Step 6: Final answer
    x = 1,213,820.70

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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.