Home / 840,180.80-1,260,271.20-307,524.80

Finding the Fourth Proportional to 840,180.80, 1,260,271.20 and 307,524.80

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Solution

The fourth proportional to 840,180.80, 1,260,271.20 and 307,524.80 is: 461,287.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,180.80 : 1,260,271.20 = 307,524.80 : x
  2. Step 2: Convert to fraction form
    840,180.80/1,260,271.20 = 307,524.80/x
  3. Step 3: Cross multiply
    840,180.80x = 1,260,271.20 × 307,524.80
  4. Step 4: Simplify right side
    840,180.80x = 387,564,648,725.76
  5. Step 5: Solve for x
    x = 387,564,648,725.76/840,180.80
  6. Step 6: Final answer
    x = 461,287.20

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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.