Home / 495,339.03-683,570.34-280,520.96

Finding the Fourth Proportional to 495,339.03, 683,570.34 and 280,520.96

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Solution

The fourth proportional to 495,339.03, 683,570.34 and 280,520.96 is: 387,120.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,339.03 : 683,570.34 = 280,520.96 : x
  2. Step 2: Convert to fraction form
    495,339.03/683,570.34 = 280,520.96/x
  3. Step 3: Cross multiply
    495,339.03x = 683,570.34 × 280,520.96
  4. Step 4: Simplify right side
    495,339.03x = 191,755,804,586.48
  5. Step 5: Solve for x
    x = 191,755,804,586.48/495,339.03
  6. Step 6: Final answer
    x = 387,120.32

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1.5x scale

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.