Home / 340,822.80-511,234.20-288,334.80

Finding the Fourth Proportional to 340,822.80, 511,234.20 and 288,334.80

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Solution

The fourth proportional to 340,822.80, 511,234.20 and 288,334.80 is: 432,502.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,822.80 : 511,234.20 = 288,334.80 : x
  2. Step 2: Convert to fraction form
    340,822.80/511,234.20 = 288,334.80/x
  3. Step 3: Cross multiply
    340,822.80x = 511,234.20 × 288,334.80
  4. Step 4: Simplify right side
    340,822.80x = 147,406,610,810.16
  5. Step 5: Solve for x
    x = 147,406,610,810.16/340,822.80
  6. Step 6: Final answer
    x = 432,502.20

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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.