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Finding the Fourth Proportional to 679,379.40, 937,555.22 and 373,468.66

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Solution

The fourth proportional to 679,379.40, 937,555.22 and 373,468.66 is: 515,393.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,379.40 : 937,555.22 = 373,468.66 : x
  2. Step 2: Convert to fraction form
    679,379.40/937,555.22 = 373,468.66/x
  3. Step 3: Cross multiply
    679,379.40x = 937,555.22 × 373,468.66
  4. Step 4: Simplify right side
    679,379.40x = 350,147,491,689.41
  5. Step 5: Solve for x
    x = 350,147,491,689.41/679,379.40
  6. Step 6: Final answer
    x = 515,393.15

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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.