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Finding the Fourth Proportional to 679,567.09, 937,805 and 373,662.71

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Solution

The fourth proportional to 679,567.09, 937,805 and 373,662.71 is: 515,655.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,567.09 : 937,805 = 373,662.71 : x
  2. Step 2: Convert to fraction form
    679,567.09/937,805 = 373,662.71/x
  3. Step 3: Cross multiply
    679,567.09x = 937,805 × 373,662.71
  4. Step 4: Simplify right side
    679,567.09x = 350,422,757,751.55
  5. Step 5: Solve for x
    x = 350,422,757,751.55/679,567.09
  6. Step 6: Final answer
    x = 515,655.87

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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.