Home / 1,255,453.47-1,730,899.61-813,141.09

Finding the Fourth Proportional to 1,255,453.47, 1,730,899.61 and 813,141.09

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Solution

The fourth proportional to 1,255,453.47, 1,730,899.61 and 813,141.09 is: 1,121,081.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,255,453.47 : 1,730,899.61 = 813,141.09 : x
  2. Step 2: Convert to fraction form
    1,255,453.47/1,730,899.61 = 813,141.09/x
  3. Step 3: Cross multiply
    1,255,453.47x = 1,730,899.61 × 813,141.09
  4. Step 4: Simplify right side
    1,255,453.47x = 1,407,465,595,555.98
  5. Step 5: Solve for x
    x = 1,407,465,595,555.98/1,255,453.47
  6. Step 6: Final answer
    x = 1,121,081.45

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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.