Home / 977,139.70-1,465,709.55-809,178.10

Finding the Fourth Proportional to 977,139.70, 1,465,709.55 and 809,178.10

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Solution

The fourth proportional to 977,139.70, 1,465,709.55 and 809,178.10 is: 1,213,767.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,139.70 : 1,465,709.55 = 809,178.10 : x
  2. Step 2: Convert to fraction form
    977,139.70/1,465,709.55 = 809,178.10/x
  3. Step 3: Cross multiply
    977,139.70x = 1,465,709.55 × 809,178.10
  4. Step 4: Simplify right side
    977,139.70x = 1,186,020,068,820.86
  5. Step 5: Solve for x
    x = 1,186,020,068,820.86/977,139.70
  6. Step 6: Final answer
    x = 1,213,767.15

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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.