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Finding the Fourth Proportional to 572,690.02, 790,266.13 and 330,988.25

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Solution

The fourth proportional to 572,690.02, 790,266.13 and 330,988.25 is: 456,737.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,690.02 : 790,266.13 = 330,988.25 : x
  2. Step 2: Convert to fraction form
    572,690.02/790,266.13 = 330,988.25/x
  3. Step 3: Cross multiply
    572,690.02x = 790,266.13 × 330,988.25
  4. Step 4: Simplify right side
    572,690.02x = 261,568,799,865.38
  5. Step 5: Solve for x
    x = 261,568,799,865.38/572,690.02
  6. Step 6: Final answer
    x = 456,737.14

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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.