Home / 1,218,564.54-1,681,681.14-674,760.42

Finding the Fourth Proportional to 1,218,564.54, 1,681,681.14 and 674,760.42

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Solution

The fourth proportional to 1,218,564.54, 1,681,681.14 and 674,760.42 is: 931,203.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,564.54 : 1,681,681.14 = 674,760.42 : x
  2. Step 2: Convert to fraction form
    1,218,564.54/1,681,681.14 = 674,760.42/x
  3. Step 3: Cross multiply
    1,218,564.54x = 1,681,681.14 × 674,760.42
  4. Step 4: Simplify right side
    1,218,564.54x = 1,134,731,872,332.48
  5. Step 5: Solve for x
    x = 1,134,731,872,332.48/1,218,564.54
  6. Step 6: Final answer
    x = 931,203.75

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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.