Home / 1,913,031.20-2,640,102.40-1,053,591.24

Finding the Fourth Proportional to 1,913,031.20, 2,640,102.40 and 1,053,591.24

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Solution

The fourth proportional to 1,913,031.20, 2,640,102.40 and 1,053,591.24 is: 1,454,021.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,913,031.20 : 2,640,102.40 = 1,053,591.24 : x
  2. Step 2: Convert to fraction form
    1,913,031.20/2,640,102.40 = 1,053,591.24/x
  3. Step 3: Cross multiply
    1,913,031.20x = 2,640,102.40 × 1,053,591.24
  4. Step 4: Simplify right side
    1,913,031.20x = 2,781,588,761,342.98
  5. Step 5: Solve for x
    x = 2,781,588,761,342.98/1,913,031.20
  6. Step 6: Final answer
    x = 1,454,021.64

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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.