Home / 855,630.40-1,283,445.60-810,011.20

Finding the Fourth Proportional to 855,630.40, 1,283,445.60 and 810,011.20

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Solution

The fourth proportional to 855,630.40, 1,283,445.60 and 810,011.20 is: 1,215,016.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,630.40 : 1,283,445.60 = 810,011.20 : x
  2. Step 2: Convert to fraction form
    855,630.40/1,283,445.60 = 810,011.20/x
  3. Step 3: Cross multiply
    855,630.40x = 1,283,445.60 × 810,011.20
  4. Step 4: Simplify right side
    855,630.40x = 1,039,605,310,590.72
  5. Step 5: Solve for x
    x = 1,039,605,310,590.72/855,630.40
  6. Step 6: Final answer
    x = 1,215,016.80

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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.