Home / 679,899.71-938,242.01-373,976.07

Finding the Fourth Proportional to 679,899.71, 938,242.01 and 373,976.07

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Solution

The fourth proportional to 679,899.71, 938,242.01 and 373,976.07 is: 516,076.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,899.71 : 938,242.01 = 373,976.07 : x
  2. Step 2: Convert to fraction form
    679,899.71/938,242.01 = 373,976.07/x
  3. Step 3: Cross multiply
    679,899.71x = 938,242.01 × 373,976.07
  4. Step 4: Simplify right side
    679,899.71x = 350,880,061,251.04
  5. Step 5: Solve for x
    x = 350,880,061,251.04/679,899.71
  6. Step 6: Final answer
    x = 516,076.21

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1.5x scale

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.