Home / 887,087.89-1,330,631.69-213,169.20

Finding the Fourth Proportional to 887,087.89, 1,330,631.69 and 213,169.20

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Solution

The fourth proportional to 887,087.89, 1,330,631.69 and 213,169.20 is: 319,753.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,087.89 : 1,330,631.69 = 213,169.20 : x
  2. Step 2: Convert to fraction form
    887,087.89/1,330,631.69 = 213,169.20/x
  3. Step 3: Cross multiply
    887,087.89x = 1,330,631.69 × 213,169.20
  4. Step 4: Simplify right side
    887,087.89x = 283,649,692,851.95
  5. Step 5: Solve for x
    x = 283,649,692,851.95/887,087.89
  6. Step 6: Final answer
    x = 319,753.77

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1.5x scale

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.