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Finding the Fourth Proportional to 679,633.56, 937,918.40 and 373,733.15

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Solution

The fourth proportional to 679,633.56, 937,918.40 and 373,733.15 is: 515,764.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,633.56 : 937,918.40 = 373,733.15 : x
  2. Step 2: Convert to fraction form
    679,633.56/937,918.40 = 373,733.15/x
  3. Step 3: Cross multiply
    679,633.56x = 937,918.40 × 373,733.15
  4. Step 4: Simplify right side
    679,633.56x = 350,531,191,516.70
  5. Step 5: Solve for x
    x = 350,531,191,516.70/679,633.56
  6. Step 6: Final answer
    x = 515,764.98

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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.