Home / 977,133.70-1,465,700.55-809,172.10

Finding the Fourth Proportional to 977,133.70, 1,465,700.55 and 809,172.10

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Solution

The fourth proportional to 977,133.70, 1,465,700.55 and 809,172.10 is: 1,213,758.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,133.70 : 1,465,700.55 = 809,172.10 : x
  2. Step 2: Convert to fraction form
    977,133.70/1,465,700.55 = 809,172.10/x
  3. Step 3: Cross multiply
    977,133.70x = 1,465,700.55 × 809,172.10
  4. Step 4: Simplify right side
    977,133.70x = 1,186,003,992,014.66
  5. Step 5: Solve for x
    x = 1,186,003,992,014.66/977,133.70
  6. Step 6: Final answer
    x = 1,213,758.15

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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.