Home / 887,186.90-1,331,108.40-288,167.60

Finding the Fourth Proportional to 887,186.90, 1,331,108.40 and 288,167.60

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Solution

The fourth proportional to 887,186.90, 1,331,108.40 and 288,167.60 is: 432,357.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,186.90 : 1,331,108.40 = 288,167.60 : x
  2. Step 2: Convert to fraction form
    887,186.90/1,331,108.40 = 288,167.60/x
  3. Step 3: Cross multiply
    887,186.90x = 1,331,108.40 × 288,167.60
  4. Step 4: Simplify right side
    887,186.90x = 383,582,312,967.84
  5. Step 5: Solve for x
    x = 383,582,312,967.84/887,186.90
  6. Step 6: Final answer
    x = 432,357.95

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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.