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Finding the Fourth Proportional to 572,715.34, 790,301.08 and 331,013.57

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Solution

The fourth proportional to 572,715.34, 790,301.08 and 331,013.57 is: 456,772.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,715.34 : 790,301.08 = 331,013.57 : x
  2. Step 2: Convert to fraction form
    572,715.34/790,301.08 = 331,013.57/x
  3. Step 3: Cross multiply
    572,715.34x = 790,301.08 × 331,013.57
  4. Step 4: Simplify right side
    572,715.34x = 261,600,381,842.39
  5. Step 5: Solve for x
    x = 261,600,381,842.39/572,715.34
  6. Step 6: Final answer
    x = 456,772.09

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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.