Home / 495,429.40-743,144.10-258,844.60

Finding the Fourth Proportional to 495,429.40, 743,144.10 and 258,844.60

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Solution

The fourth proportional to 495,429.40, 743,144.10 and 258,844.60 is: 388,266.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,429.40 : 743,144.10 = 258,844.60 : x
  2. Step 2: Convert to fraction form
    495,429.40/743,144.10 = 258,844.60/x
  3. Step 3: Cross multiply
    495,429.40x = 743,144.10 × 258,844.60
  4. Step 4: Simplify right side
    495,429.40x = 192,358,837,306.86
  5. Step 5: Solve for x
    x = 192,358,837,306.86/495,429.40
  6. Step 6: Final answer
    x = 388,266.90

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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.