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Finding the Fourth Proportional to 977,648.10, 1,466,472.15 and 859,452.90

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Solution

The fourth proportional to 977,648.10, 1,466,472.15 and 859,452.90 is: 1,289,179.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,648.10 : 1,466,472.15 = 859,452.90 : x
  2. Step 2: Convert to fraction form
    977,648.10/1,466,472.15 = 859,452.90/x
  3. Step 3: Cross multiply
    977,648.10x = 1,466,472.15 × 859,452.90
  4. Step 4: Simplify right side
    977,648.10x = 1,260,363,742,086.73
  5. Step 5: Solve for x
    x = 1,260,363,742,086.73/977,648.10
  6. Step 6: Final answer
    x = 1,289,179.35

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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.