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Finding the Fourth Proportional to 359,629.60, 539,444.40 and 329,303.20

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Solution

The fourth proportional to 359,629.60, 539,444.40 and 329,303.20 is: 493,954.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,629.60 : 539,444.40 = 329,303.20 : x
  2. Step 2: Convert to fraction form
    359,629.60/539,444.40 = 329,303.20/x
  3. Step 3: Cross multiply
    359,629.60x = 539,444.40 × 329,303.20
  4. Step 4: Simplify right side
    359,629.60x = 177,640,767,142.08
  5. Step 5: Solve for x
    x = 177,640,767,142.08/359,629.60
  6. Step 6: Final answer
    x = 493,954.80

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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.