Home / 679,902.66-938,246.09-373,979.03

Finding the Fourth Proportional to 679,902.66, 938,246.09 and 373,979.03

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Solution

The fourth proportional to 679,902.66, 938,246.09 and 373,979.03 is: 516,080.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,902.66 : 938,246.09 = 373,979.03 : x
  2. Step 2: Convert to fraction form
    679,902.66/938,246.09 = 373,979.03/x
  3. Step 3: Cross multiply
    679,902.66x = 938,246.09 × 373,979.03
  4. Step 4: Simplify right side
    679,902.66x = 350,884,356,078.37
  5. Step 5: Solve for x
    x = 350,884,356,078.37/679,902.66
  6. Step 6: Final answer
    x = 516,080.28

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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.