Home / 1,087,500.40-1,629,646.80-788,610.40

Finding the Fourth Proportional to 1,087,500.40, 1,629,646.80 and 788,610.40

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Solution

The fourth proportional to 1,087,500.40, 1,629,646.80 and 788,610.40 is: 1,181,752.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,500.40 : 1,629,646.80 = 788,610.40 : x
  2. Step 2: Convert to fraction form
    1,087,500.40/1,629,646.80 = 788,610.40/x
  3. Step 3: Cross multiply
    1,087,500.40x = 1,629,646.80 × 788,610.40
  4. Step 4: Simplify right side
    1,087,500.40x = 1,285,156,414,806.72
  5. Step 5: Solve for x
    x = 1,285,156,414,806.72/1,087,500.40
  6. Step 6: Final answer
    x = 1,181,752.59

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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.