Home / 765,878.13-1,057,053.51-443,588.13

Finding the Fourth Proportional to 765,878.13, 1,057,053.51 and 443,588.13

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Solution

The fourth proportional to 765,878.13, 1,057,053.51 and 443,588.13 is: 612,233.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,878.13 : 1,057,053.51 = 443,588.13 : x
  2. Step 2: Convert to fraction form
    765,878.13/1,057,053.51 = 443,588.13/x
  3. Step 3: Cross multiply
    765,878.13x = 1,057,053.51 × 443,588.13
  4. Step 4: Simplify right side
    765,878.13x = 468,896,389,810.84
  5. Step 5: Solve for x
    x = 468,896,389,810.84/765,878.13
  6. Step 6: Final answer
    x = 612,233.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.