Home / 1,556,691.12-2,148,854.40-1,338,036.48

Finding the Fourth Proportional to 1,556,691.12, 2,148,854.40 and 1,338,036.48

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Solution

The fourth proportional to 1,556,691.12, 2,148,854.40 and 1,338,036.48 is: 1,847,023.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,556,691.12 : 2,148,854.40 = 1,338,036.48 : x
  2. Step 2: Convert to fraction form
    1,556,691.12/2,148,854.40 = 1,338,036.48/x
  3. Step 3: Cross multiply
    1,556,691.12x = 2,148,854.40 × 1,338,036.48
  4. Step 4: Simplify right side
    1,556,691.12x = 2,875,245,577,408.51
  5. Step 5: Solve for x
    x = 2,875,245,577,408.51/1,556,691.12
  6. Step 6: Final answer
    x = 1,847,023.82

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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.