Home / 765,567.18-1,147,578.80-481,460.72

Finding the Fourth Proportional to 765,567.18, 1,147,578.80 and 481,460.72

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Solution

The fourth proportional to 765,567.18, 1,147,578.80 and 481,460.72 is: 721,705.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,567.18 : 1,147,578.80 = 481,460.72 : x
  2. Step 2: Convert to fraction form
    765,567.18/1,147,578.80 = 481,460.72/x
  3. Step 3: Cross multiply
    765,567.18x = 1,147,578.80 × 481,460.72
  4. Step 4: Simplify right side
    765,567.18x = 552,514,107,159.54
  5. Step 5: Solve for x
    x = 552,514,107,159.54/765,567.18
  6. Step 6: Final answer
    x = 721,705.58

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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.