Home / 977,140.20-1,465,710.30-809,178.60

Finding the Fourth Proportional to 977,140.20, 1,465,710.30 and 809,178.60

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Solution

The fourth proportional to 977,140.20, 1,465,710.30 and 809,178.60 is: 1,213,767.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,140.20 : 1,465,710.30 = 809,178.60 : x
  2. Step 2: Convert to fraction form
    977,140.20/1,465,710.30 = 809,178.60/x
  3. Step 3: Cross multiply
    977,140.20x = 1,465,710.30 × 809,178.60
  4. Step 4: Simplify right side
    977,140.20x = 1,186,021,408,559.58
  5. Step 5: Solve for x
    x = 1,186,021,408,559.58/977,140.20
  6. Step 6: Final answer
    x = 1,213,767.90

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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.