Home / 495,721.22-684,093.60-280,902.23

Finding the Fourth Proportional to 495,721.22, 684,093.60 and 280,902.23

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Solution

The fourth proportional to 495,721.22, 684,093.60 and 280,902.23 is: 387,644.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,721.22 : 684,093.60 = 280,902.23 : x
  2. Step 2: Convert to fraction form
    495,721.22/684,093.60 = 280,902.23/x
  3. Step 3: Cross multiply
    495,721.22x = 684,093.60 × 280,902.23
  4. Step 4: Simplify right side
    495,721.22x = 192,163,416,913.61
  5. Step 5: Solve for x
    x = 192,163,416,913.61/495,721.22
  6. Step 6: Final answer
    x = 387,644.13

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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.