Home / 887,559.90-1,331,011.80-288,540.60

Finding the Fourth Proportional to 887,559.90, 1,331,011.80 and 288,540.60

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Solution

The fourth proportional to 887,559.90, 1,331,011.80 and 288,540.60 is: 432,704.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,559.90 : 1,331,011.80 = 288,540.60 : x
  2. Step 2: Convert to fraction form
    887,559.90/1,331,011.80 = 288,540.60/x
  3. Step 3: Cross multiply
    887,559.90x = 1,331,011.80 × 288,540.60
  4. Step 4: Simplify right side
    887,559.90x = 384,050,943,379.08
  5. Step 5: Solve for x
    x = 384,050,943,379.08/887,559.90
  6. Step 6: Final answer
    x = 432,704.25

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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.