Home / 1,139,427.60-1,707,067.80-927,920.40

Finding the Fourth Proportional to 1,139,427.60, 1,707,067.80 and 927,920.40

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Solution

The fourth proportional to 1,139,427.60, 1,707,067.80 and 927,920.40 is: 1,390,191.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,427.60 : 1,707,067.80 = 927,920.40 : x
  2. Step 2: Convert to fraction form
    1,139,427.60/1,707,067.80 = 927,920.40/x
  3. Step 3: Cross multiply
    1,139,427.60x = 1,707,067.80 × 927,920.40
  4. Step 4: Simplify right side
    1,139,427.60x = 1,584,023,035,803.12
  5. Step 5: Solve for x
    x = 1,584,023,035,803.12/1,139,427.60
  6. Step 6: Final answer
    x = 1,390,191.91

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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.