Home / 687,002.70-1,030,504.05-288,093.90

Finding the Fourth Proportional to 687,002.70, 1,030,504.05 and 288,093.90

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Solution

The fourth proportional to 687,002.70, 1,030,504.05 and 288,093.90 is: 432,140.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,002.70 : 1,030,504.05 = 288,093.90 : x
  2. Step 2: Convert to fraction form
    687,002.70/1,030,504.05 = 288,093.90/x
  3. Step 3: Cross multiply
    687,002.70x = 1,030,504.05 × 288,093.90
  4. Step 4: Simplify right side
    687,002.70x = 296,881,930,730.30
  5. Step 5: Solve for x
    x = 296,881,930,730.30/687,002.70
  6. Step 6: Final answer
    x = 432,140.85

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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.