Home / 1,217,711.49-1,680,416.68-673,846.90

Finding the Fourth Proportional to 1,217,711.49, 1,680,416.68 and 673,846.90

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Solution

The fourth proportional to 1,217,711.49, 1,680,416.68 and 673,846.90 is: 929,894.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,711.49 : 1,680,416.68 = 673,846.90 : x
  2. Step 2: Convert to fraction form
    1,217,711.49/1,680,416.68 = 673,846.90/x
  3. Step 3: Cross multiply
    1,217,711.49x = 1,680,416.68 × 673,846.90
  4. Step 4: Simplify right side
    1,217,711.49x = 1,132,343,570,526.29
  5. Step 5: Solve for x
    x = 1,132,343,570,526.29/1,217,711.49
  6. Step 6: Final answer
    x = 929,894.79

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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.