Home / 1,255,919.20-1,883,792.40-402,978.40

Finding the Fourth Proportional to 1,255,919.20, 1,883,792.40 and 402,978.40

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Solution

The fourth proportional to 1,255,919.20, 1,883,792.40 and 402,978.40 is: 604,439.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,255,919.20 : 1,883,792.40 = 402,978.40 : x
  2. Step 2: Convert to fraction form
    1,255,919.20/1,883,792.40 = 402,978.40/x
  3. Step 3: Cross multiply
    1,255,919.20x = 1,883,792.40 × 402,978.40
  4. Step 4: Simplify right side
    1,255,919.20x = 759,127,647,284.16
  5. Step 5: Solve for x
    x = 759,127,647,284.16/1,255,919.20
  6. Step 6: Final answer
    x = 604,439.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.