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Finding the Fourth Proportional to 413,885.89, 571,369.21 and 270,864.39

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Solution

The fourth proportional to 413,885.89, 571,369.21 and 270,864.39 is: 373,928.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,885.89 : 571,369.21 = 270,864.39 : x
  2. Step 2: Convert to fraction form
    413,885.89/571,369.21 = 270,864.39/x
  3. Step 3: Cross multiply
    413,885.89x = 571,369.21 × 270,864.39
  4. Step 4: Simplify right side
    413,885.89x = 154,763,572,531.43
  5. Step 5: Solve for x
    x = 154,763,572,531.43/413,885.89
  6. Step 6: Final answer
    x = 373,928.12

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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.