Home / 977,110.40-1,465,665.60-809,148.80

Finding the Fourth Proportional to 977,110.40, 1,465,665.60 and 809,148.80

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Solution

The fourth proportional to 977,110.40, 1,465,665.60 and 809,148.80 is: 1,213,723.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,110.40 : 1,465,665.60 = 809,148.80 : x
  2. Step 2: Convert to fraction form
    977,110.40/1,465,665.60 = 809,148.80/x
  3. Step 3: Cross multiply
    977,110.40x = 1,465,665.60 × 809,148.80
  4. Step 4: Simplify right side
    977,110.40x = 1,185,941,561,441.28
  5. Step 5: Solve for x
    x = 1,185,941,561,441.28/977,110.40
  6. Step 6: Final answer
    x = 1,213,723.20

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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.