Home / 495,339.03-683,570.48-280,520.91

Finding the Fourth Proportional to 495,339.03, 683,570.48 and 280,520.91

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Solution

The fourth proportional to 495,339.03, 683,570.48 and 280,520.91 is: 387,120.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,339.03 : 683,570.48 = 280,520.91 : x
  2. Step 2: Convert to fraction form
    495,339.03/683,570.48 = 280,520.91/x
  3. Step 3: Cross multiply
    495,339.03x = 683,570.48 × 280,520.91
  4. Step 4: Simplify right side
    495,339.03x = 191,755,811,696.13
  5. Step 5: Solve for x
    x = 191,755,811,696.13/495,339.03
  6. Step 6: Final answer
    x = 387,120.34

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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.