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Finding the Fourth Proportional to 790,978.04, 1,186,278.88 and 341,452.94

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Solution

The fourth proportional to 790,978.04, 1,186,278.88 and 341,452.94 is: 512,098.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,978.04 : 1,186,278.88 = 341,452.94 : x
  2. Step 2: Convert to fraction form
    790,978.04/1,186,278.88 = 341,452.94/x
  3. Step 3: Cross multiply
    790,978.04x = 1,186,278.88 × 341,452.94
  4. Step 4: Simplify right side
    790,978.04x = 405,058,411,235.91
  5. Step 5: Solve for x
    x = 405,058,411,235.91/790,978.04
  6. Step 6: Final answer
    x = 512,098.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.