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Finding the Fourth Proportional to 511,700.80, 767,551.20 and 404,795.20

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Solution

The fourth proportional to 511,700.80, 767,551.20 and 404,795.20 is: 607,192.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,700.80 : 767,551.20 = 404,795.20 : x
  2. Step 2: Convert to fraction form
    511,700.80/767,551.20 = 404,795.20/x
  3. Step 3: Cross multiply
    511,700.80x = 767,551.20 × 404,795.20
  4. Step 4: Simplify right side
    511,700.80x = 310,701,041,514.24
  5. Step 5: Solve for x
    x = 310,701,041,514.24/511,700.80
  6. Step 6: Final answer
    x = 607,192.80

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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.