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Finding the Fourth Proportional to 679,666.59, 937,999.67 and 373,796.87

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Solution

The fourth proportional to 679,666.59, 937,999.67 and 373,796.87 is: 515,872.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,666.59 : 937,999.67 = 373,796.87 : x
  2. Step 2: Convert to fraction form
    679,666.59/937,999.67 = 373,796.87/x
  3. Step 3: Cross multiply
    679,666.59x = 937,999.67 × 373,796.87
  4. Step 4: Simplify right side
    679,666.59x = 350,621,334,148.05
  5. Step 5: Solve for x
    x = 350,621,334,148.05/679,666.59
  6. Step 6: Final answer
    x = 515,872.55

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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.