Home / 591,621.40-887,988.90-311,339.80

Finding the Fourth Proportional to 591,621.40, 887,988.90 and 311,339.80

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Solution

The fourth proportional to 591,621.40, 887,988.90 and 311,339.80 is: 467,302.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,621.40 : 887,988.90 = 311,339.80 : x
  2. Step 2: Convert to fraction form
    591,621.40/887,988.90 = 311,339.80/x
  3. Step 3: Cross multiply
    591,621.40x = 887,988.90 × 311,339.80
  4. Step 4: Simplify right side
    591,621.40x = 276,466,286,528.22
  5. Step 5: Solve for x
    x = 276,466,286,528.22/591,621.40
  6. Step 6: Final answer
    x = 467,302.72

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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.