Home / 1,190,335.90-1,642,924.91-782,475.29

Finding the Fourth Proportional to 1,190,335.90, 1,642,924.91 and 782,475.29

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Solution

The fourth proportional to 1,190,335.90, 1,642,924.91 and 782,475.29 is: 1,079,987.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,335.90 : 1,642,924.91 = 782,475.29 : x
  2. Step 2: Convert to fraction form
    1,190,335.90/1,642,924.91 = 782,475.29/x
  3. Step 3: Cross multiply
    1,190,335.90x = 1,642,924.91 × 782,475.29
  4. Step 4: Simplify right side
    1,190,335.90x = 1,285,548,133,273.47
  5. Step 5: Solve for x
    x = 1,285,548,133,273.47/1,190,335.90
  6. Step 6: Final answer
    x = 1,079,987.70

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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.