Home / 1,217,107.20-1,679,478.72-673,156.56

Finding the Fourth Proportional to 1,217,107.20, 1,679,478.72 and 673,156.56

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Solution

The fourth proportional to 1,217,107.20, 1,679,478.72 and 673,156.56 is: 928,884.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,107.20 : 1,679,478.72 = 673,156.56 : x
  2. Step 2: Convert to fraction form
    1,217,107.20/1,679,478.72 = 673,156.56/x
  3. Step 3: Cross multiply
    1,217,107.20x = 1,679,478.72 × 673,156.56
  4. Step 4: Simplify right side
    1,217,107.20x = 1,130,552,117,748.40
  5. Step 5: Solve for x
    x = 1,130,552,117,748.40/1,217,107.20
  6. Step 6: Final answer
    x = 928,884.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.