Home / 887,065.40-1,330,270.05-288,046.10

Finding the Fourth Proportional to 887,065.40, 1,330,270.05 and 288,046.10

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Solution

The fourth proportional to 887,065.40, 1,330,270.05 and 288,046.10 is: 431,962.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,065.40 : 1,330,270.05 = 288,046.10 : x
  2. Step 2: Convert to fraction form
    887,065.40/1,330,270.05 = 288,046.10/x
  3. Step 3: Cross multiply
    887,065.40x = 1,330,270.05 × 288,046.10
  4. Step 4: Simplify right side
    887,065.40x = 383,179,099,849.31
  5. Step 5: Solve for x
    x = 383,179,099,849.31/887,065.40
  6. Step 6: Final answer
    x = 431,962.63

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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.