Home / 1,260,785.32-1,739,849.40-687,825.40

Finding the Fourth Proportional to 1,260,785.32, 1,739,849.40 and 687,825.40

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Solution

The fourth proportional to 1,260,785.32, 1,739,849.40 and 687,825.40 is: 949,180.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,785.32 : 1,739,849.40 = 687,825.40 : x
  2. Step 2: Convert to fraction form
    1,260,785.32/1,739,849.40 = 687,825.40/x
  3. Step 3: Cross multiply
    1,260,785.32x = 1,739,849.40 × 687,825.40
  4. Step 4: Simplify right side
    1,260,785.32x = 1,196,712,609,494.76
  5. Step 5: Solve for x
    x = 1,196,712,609,494.76/1,260,785.32
  6. Step 6: Final answer
    x = 949,180.32

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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.