Home / 646,161.02-891,687.42-404,576.79

Finding the Fourth Proportional to 646,161.02, 891,687.42 and 404,576.79

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Solution

The fourth proportional to 646,161.02, 891,687.42 and 404,576.79 is: 558,306.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,161.02 : 891,687.42 = 404,576.79 : x
  2. Step 2: Convert to fraction form
    646,161.02/891,687.42 = 404,576.79/x
  3. Step 3: Cross multiply
    646,161.02x = 891,687.42 × 404,576.79
  4. Step 4: Simplify right side
    646,161.02x = 360,756,034,066.98
  5. Step 5: Solve for x
    x = 360,756,034,066.98/646,161.02
  6. Step 6: Final answer
    x = 558,306.72

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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.