Home / 1,255,453.24-1,730,899.31-813,140.86

Finding the Fourth Proportional to 1,255,453.24, 1,730,899.31 and 813,140.86

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Solution

The fourth proportional to 1,255,453.24, 1,730,899.31 and 813,140.86 is: 1,121,081.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,255,453.24 : 1,730,899.31 = 813,140.86 : x
  2. Step 2: Convert to fraction form
    1,255,453.24/1,730,899.31 = 813,140.86/x
  3. Step 3: Cross multiply
    1,255,453.24x = 1,730,899.31 × 813,140.86
  4. Step 4: Simplify right side
    1,255,453.24x = 1,407,464,953,506.81
  5. Step 5: Solve for x
    x = 1,407,464,953,506.81/1,255,453.24
  6. Step 6: Final answer
    x = 1,121,081.14

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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.