Home / 1,315,217.70-1,972,826.55-866,445.30

Finding the Fourth Proportional to 1,315,217.70, 1,972,826.55 and 866,445.30

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Solution

The fourth proportional to 1,315,217.70, 1,972,826.55 and 866,445.30 is: 1,299,667.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,217.70 : 1,972,826.55 = 866,445.30 : x
  2. Step 2: Convert to fraction form
    1,315,217.70/1,972,826.55 = 866,445.30/x
  3. Step 3: Cross multiply
    1,315,217.70x = 1,972,826.55 × 866,445.30
  4. Step 4: Simplify right side
    1,315,217.70x = 1,709,346,291,962.72
  5. Step 5: Solve for x
    x = 1,709,346,291,962.72/1,315,217.70
  6. Step 6: Final answer
    x = 1,299,667.95

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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.