Home / 495,432.10-683,712.30-280,567.54

Finding the Fourth Proportional to 495,432.10, 683,712.30 and 280,567.54

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Solution

The fourth proportional to 495,432.10, 683,712.30 and 280,567.54 is: 387,192.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,432.10 : 683,712.30 = 280,567.54 : x
  2. Step 2: Convert to fraction form
    495,432.10/683,712.30 = 280,567.54/x
  3. Step 3: Cross multiply
    495,432.10x = 683,712.30 × 280,567.54
  4. Step 4: Simplify right side
    495,432.10x = 191,827,478,078.74
  5. Step 5: Solve for x
    x = 191,827,478,078.74/495,432.10
  6. Step 6: Final answer
    x = 387,192.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.