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Finding the Fourth Proportional to 679,722.67, 937,997.40 and 373,798.72

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Solution

The fourth proportional to 679,722.67, 937,997.40 and 373,798.72 is: 515,831.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,722.67 : 937,997.40 = 373,798.72 : x
  2. Step 2: Convert to fraction form
    679,722.67/937,997.40 = 373,798.72/x
  3. Step 3: Cross multiply
    679,722.67x = 937,997.40 × 373,798.72
  4. Step 4: Simplify right side
    679,722.67x = 350,622,227,483.33
  5. Step 5: Solve for x
    x = 350,622,227,483.33/679,722.67
  6. Step 6: Final answer
    x = 515,831.30

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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.