Home / 572,272.64-789,736.20-317,623.76

Finding the Fourth Proportional to 572,272.64, 789,736.20 and 317,623.76

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Solution

The fourth proportional to 572,272.64, 789,736.20 and 317,623.76 is: 438,320.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,272.64 : 789,736.20 = 317,623.76 : x
  2. Step 2: Convert to fraction form
    572,272.64/789,736.20 = 317,623.76/x
  3. Step 3: Cross multiply
    572,272.64x = 789,736.20 × 317,623.76
  4. Step 4: Simplify right side
    572,272.64x = 250,838,981,252.11
  5. Step 5: Solve for x
    x = 250,838,981,252.11/572,272.64
  6. Step 6: Final answer
    x = 438,320.76

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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.