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Finding the Fourth Proportional to 679,609.12, 937,884.67 and 373,708.77

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Solution

The fourth proportional to 679,609.12, 937,884.67 and 373,708.77 is: 515,731.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,609.12 : 937,884.67 = 373,708.77 : x
  2. Step 2: Convert to fraction form
    679,609.12/937,884.67 = 373,708.77/x
  3. Step 3: Cross multiply
    679,609.12x = 937,884.67 × 373,708.77
  4. Step 4: Simplify right side
    679,609.12x = 350,495,726,427.56
  5. Step 5: Solve for x
    x = 350,495,726,427.56/679,609.12
  6. Step 6: Final answer
    x = 515,731.35

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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.