Home / 977,128.70-1,465,693.05-809,167.10

Finding the Fourth Proportional to 977,128.70, 1,465,693.05 and 809,167.10

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Solution

The fourth proportional to 977,128.70, 1,465,693.05 and 809,167.10 is: 1,213,750.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,128.70 : 1,465,693.05 = 809,167.10 : x
  2. Step 2: Convert to fraction form
    977,128.70/1,465,693.05 = 809,167.10/x
  3. Step 3: Cross multiply
    977,128.70x = 1,465,693.05 × 809,167.10
  4. Step 4: Simplify right side
    977,128.70x = 1,185,990,594,758.66
  5. Step 5: Solve for x
    x = 1,185,990,594,758.66/977,128.70
  6. Step 6: Final answer
    x = 1,213,750.65

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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.