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Finding the Fourth Proportional to 564,561.50, 779,244.20 and 349,579.40

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Solution

The fourth proportional to 564,561.50, 779,244.20 and 349,579.40 is: 482,512.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,561.50 : 779,244.20 = 349,579.40 : x
  2. Step 2: Convert to fraction form
    564,561.50/779,244.20 = 349,579.40/x
  3. Step 3: Cross multiply
    564,561.50x = 779,244.20 × 349,579.40
  4. Step 4: Simplify right side
    564,561.50x = 272,407,715,556.29
  5. Step 5: Solve for x
    x = 272,407,715,556.29/564,561.50
  6. Step 6: Final answer
    x = 482,512.03

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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.