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Finding the Fourth Proportional to 679,827.88, 938,174.34 and 373,937.32

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Solution

The fourth proportional to 679,827.88, 938,174.34 and 373,937.32 is: 516,040.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,827.88 : 938,174.34 = 373,937.32 : x
  2. Step 2: Convert to fraction form
    679,827.88/938,174.34 = 373,937.32/x
  3. Step 3: Cross multiply
    679,827.88x = 938,174.34 × 373,937.32
  4. Step 4: Simplify right side
    679,827.88x = 350,818,398,392.37
  5. Step 5: Solve for x
    x = 350,818,398,392.37/679,827.88
  6. Step 6: Final answer
    x = 516,040.03

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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.