Home / 1,218,650.89-1,681,717.68-674,775.00

Finding the Fourth Proportional to 1,218,650.89, 1,681,717.68 and 674,775.00

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Solution

The fourth proportional to 1,218,650.89, 1,681,717.68 and 674,775.00 is: 931,178.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,650.89 : 1,681,717.68 = 674,775.00 : x
  2. Step 2: Convert to fraction form
    1,218,650.89/1,681,717.68 = 674,775.00/x
  3. Step 3: Cross multiply
    1,218,650.89x = 1,681,717.68 × 674,775.00
  4. Step 4: Simplify right side
    1,218,650.89x = 1,134,781,047,040.17
  5. Step 5: Solve for x
    x = 1,134,781,047,040.17/1,218,650.89
  6. Step 6: Final answer
    x = 931,178.12

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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.