Home / 1,217,516.40-1,680,222.15-673,643.34

Finding the Fourth Proportional to 1,217,516.40, 1,680,222.15 and 673,643.34

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Solution

The fourth proportional to 1,217,516.40, 1,680,222.15 and 673,643.34 is: 929,655.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,516.40 : 1,680,222.15 = 673,643.34 : x
  2. Step 2: Convert to fraction form
    1,217,516.40/1,680,222.15 = 673,643.34/x
  3. Step 3: Cross multiply
    1,217,516.40x = 1,680,222.15 × 673,643.34
  4. Step 4: Simplify right side
    1,217,516.40x = 1,131,870,461,067.98
  5. Step 5: Solve for x
    x = 1,131,870,461,067.98/1,217,516.40
  6. Step 6: Final answer
    x = 929,655.21

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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.