Home / 315,021.20-472,531.80-297,962.60

Finding the Fourth Proportional to 315,021.20, 472,531.80 and 297,962.60

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Solution

The fourth proportional to 315,021.20, 472,531.80 and 297,962.60 is: 446,943.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,021.20 : 472,531.80 = 297,962.60 : x
  2. Step 2: Convert to fraction form
    315,021.20/472,531.80 = 297,962.60/x
  3. Step 3: Cross multiply
    315,021.20x = 472,531.80 × 297,962.60
  4. Step 4: Simplify right side
    315,021.20x = 140,796,803,710.68
  5. Step 5: Solve for x
    x = 140,796,803,710.68/315,021.20
  6. Step 6: Final answer
    x = 446,943.90

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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.