Home / 1,392,377.40-2,085,801.30-760,159.80

Finding the Fourth Proportional to 1,392,377.40, 2,085,801.30 and 760,159.80

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Solution

The fourth proportional to 1,392,377.40, 2,085,801.30 and 760,159.80 is: 1,138,730.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,377.40 : 2,085,801.30 = 760,159.80 : x
  2. Step 2: Convert to fraction form
    1,392,377.40/2,085,801.30 = 760,159.80/x
  3. Step 3: Cross multiply
    1,392,377.40x = 2,085,801.30 × 760,159.80
  4. Step 4: Simplify right side
    1,392,377.40x = 1,585,542,299,047.74
  5. Step 5: Solve for x
    x = 1,585,542,299,047.74/1,392,377.40
  6. Step 6: Final answer
    x = 1,138,730.27

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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.