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Finding the Fourth Proportional to 849,387, 1,274,589.27 and 317,281.98

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Solution

The fourth proportional to 849,387, 1,274,589.27 and 317,281.98 is: 476,113.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,387 : 1,274,589.27 = 317,281.98 : x
  2. Step 2: Convert to fraction form
    849,387/1,274,589.27 = 317,281.98/x
  3. Step 3: Cross multiply
    849,387x = 1,274,589.27 × 317,281.98
  4. Step 4: Simplify right side
    849,387x = 404,404,207,272.36
  5. Step 5: Solve for x
    x = 404,404,207,272.36/849,387
  6. Step 6: Final answer
    x = 476,113.02

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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.