Home / 1,555,679.79-2,146,979.12-943,987.53

Finding the Fourth Proportional to 1,555,679.79, 2,146,979.12 and 943,987.53

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Solution

The fourth proportional to 1,555,679.79, 2,146,979.12 and 943,987.53 is: 1,302,788.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555,679.79 : 2,146,979.12 = 943,987.53 : x
  2. Step 2: Convert to fraction form
    1,555,679.79/2,146,979.12 = 943,987.53/x
  3. Step 3: Cross multiply
    1,555,679.79x = 2,146,979.12 × 943,987.53
  4. Step 4: Simplify right side
    1,555,679.79x = 2,026,721,519,781.61
  5. Step 5: Solve for x
    x = 2,026,721,519,781.61/1,555,679.79
  6. Step 6: Final answer
    x = 1,302,788.36

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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.