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Finding the Fourth Proportional to 2,632,657.60, 3,948,986.40 and 739,460.80

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Solution

The fourth proportional to 2,632,657.60, 3,948,986.40 and 739,460.80 is: 1,109,191.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,632,657.60 : 3,948,986.40 = 739,460.80 : x
  2. Step 2: Convert to fraction form
    2,632,657.60/3,948,986.40 = 739,460.80/x
  3. Step 3: Cross multiply
    2,632,657.60x = 3,948,986.40 × 739,460.80
  4. Step 4: Simplify right side
    2,632,657.60x = 2,920,120,642,533.12
  5. Step 5: Solve for x
    x = 2,920,120,642,533.12/2,632,657.60
  6. Step 6: Final answer
    x = 1,109,191.20

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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.