Home / 686,974.10-1,030,463.80-287,334.55

Finding the Fourth Proportional to 686,974.10, 1,030,463.80 and 287,334.55

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Solution

The fourth proportional to 686,974.10, 1,030,463.80 and 287,334.55 is: 431,002.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,974.10 : 1,030,463.80 = 287,334.55 : x
  2. Step 2: Convert to fraction form
    686,974.10/1,030,463.80 = 287,334.55/x
  3. Step 3: Cross multiply
    686,974.10x = 1,030,463.80 × 287,334.55
  4. Step 4: Simplify right side
    686,974.10x = 296,087,847,830.31
  5. Step 5: Solve for x
    x = 296,087,847,830.31/686,974.10
  6. Step 6: Final answer
    x = 431,002.93

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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.