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Finding the Fourth Proportional to 539,884.80, 810,172.80 and 315,244.80

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Solution

The fourth proportional to 539,884.80, 810,172.80 and 315,244.80 is: 473,069.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,884.80 : 810,172.80 = 315,244.80 : x
  2. Step 2: Convert to fraction form
    539,884.80/810,172.80 = 315,244.80/x
  3. Step 3: Cross multiply
    539,884.80x = 810,172.80 × 315,244.80
  4. Step 4: Simplify right side
    539,884.80x = 255,402,762,301.44
  5. Step 5: Solve for x
    x = 255,402,762,301.44/539,884.80
  6. Step 6: Final answer
    x = 473,069.00

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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.