Home / 1,077,288.40-1,615,932.60-911,400.40

Finding the Fourth Proportional to 1,077,288.40, 1,615,932.60 and 911,400.40

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Solution

The fourth proportional to 1,077,288.40, 1,615,932.60 and 911,400.40 is: 1,367,100.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,077,288.40 : 1,615,932.60 = 911,400.40 : x
  2. Step 2: Convert to fraction form
    1,077,288.40/1,615,932.60 = 911,400.40/x
  3. Step 3: Cross multiply
    1,077,288.40x = 1,615,932.60 × 911,400.40
  4. Step 4: Simplify right side
    1,077,288.40x = 1,472,761,618,013.04
  5. Step 5: Solve for x
    x = 1,472,761,618,013.04/1,077,288.40
  6. Step 6: Final answer
    x = 1,367,100.60

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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.