Home / 1,087,342.40-1,629,409.80-788,452.40

Finding the Fourth Proportional to 1,087,342.40, 1,629,409.80 and 788,452.40

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Solution

The fourth proportional to 1,087,342.40, 1,629,409.80 and 788,452.40 is: 1,181,515.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,342.40 : 1,629,409.80 = 788,452.40 : x
  2. Step 2: Convert to fraction form
    1,087,342.40/1,629,409.80 = 788,452.40/x
  3. Step 3: Cross multiply
    1,087,342.40x = 1,629,409.80 × 788,452.40
  4. Step 4: Simplify right side
    1,087,342.40x = 1,284,712,067,393.52
  5. Step 5: Solve for x
    x = 1,284,712,067,393.52/1,087,342.40
  6. Step 6: Final answer
    x = 1,181,515.65

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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.