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Finding the Fourth Proportional to 545,987.20, 818,980.80 and 452,675.20

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Solution

The fourth proportional to 545,987.20, 818,980.80 and 452,675.20 is: 679,012.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,987.20 : 818,980.80 = 452,675.20 : x
  2. Step 2: Convert to fraction form
    545,987.20/818,980.80 = 452,675.20/x
  3. Step 3: Cross multiply
    545,987.20x = 818,980.80 × 452,675.20
  4. Step 4: Simplify right side
    545,987.20x = 370,732,297,436.16
  5. Step 5: Solve for x
    x = 370,732,297,436.16/545,987.20
  6. Step 6: Final answer
    x = 679,012.80

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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.