Home / 885,143.78-1,221,492.84-503,170.56

Finding the Fourth Proportional to 885,143.78, 1,221,492.84 and 503,170.56

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Solution

The fourth proportional to 885,143.78, 1,221,492.84 and 503,170.56 is: 694,372.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,143.78 : 1,221,492.84 = 503,170.56 : x
  2. Step 2: Convert to fraction form
    885,143.78/1,221,492.84 = 503,170.56/x
  3. Step 3: Cross multiply
    885,143.78x = 1,221,492.84 × 503,170.56
  4. Step 4: Simplify right side
    885,143.78x = 614,619,236,338.79
  5. Step 5: Solve for x
    x = 614,619,236,338.79/885,143.78
  6. Step 6: Final answer
    x = 694,372.20

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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.