Home / 1,209,425.85-1,669,020.12-693,168.57

Finding the Fourth Proportional to 1,209,425.85, 1,669,020.12 and 693,168.57

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Solution

The fourth proportional to 1,209,425.85, 1,669,020.12 and 693,168.57 is: 956,579.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,425.85 : 1,669,020.12 = 693,168.57 : x
  2. Step 2: Convert to fraction form
    1,209,425.85/1,669,020.12 = 693,168.57/x
  3. Step 3: Cross multiply
    1,209,425.85x = 1,669,020.12 × 693,168.57
  4. Step 4: Simplify right side
    1,209,425.85x = 1,156,912,289,881.63
  5. Step 5: Solve for x
    x = 1,156,912,289,881.63/1,209,425.85
  6. Step 6: Final answer
    x = 956,579.76

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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.