Home / 1,107,165.78-1,528,001.61-677,729.70

Finding the Fourth Proportional to 1,107,165.78, 1,528,001.61 and 677,729.70

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Solution

The fourth proportional to 1,107,165.78, 1,528,001.61 and 677,729.70 is: 935,336.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,165.78 : 1,528,001.61 = 677,729.70 : x
  2. Step 2: Convert to fraction form
    1,107,165.78/1,528,001.61 = 677,729.70/x
  3. Step 3: Cross multiply
    1,107,165.78x = 1,528,001.61 × 677,729.70
  4. Step 4: Simplify right side
    1,107,165.78x = 1,035,572,072,744.82
  5. Step 5: Solve for x
    x = 1,035,572,072,744.82/1,107,165.78
  6. Step 6: Final answer
    x = 935,336.05

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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.