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Finding the Fourth Proportional to 561,697.02, 775,142.22 and 307,048.26

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Solution

The fourth proportional to 561,697.02, 775,142.22 and 307,048.26 is: 423,726.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,697.02 : 775,142.22 = 307,048.26 : x
  2. Step 2: Convert to fraction form
    561,697.02/775,142.22 = 307,048.26/x
  3. Step 3: Cross multiply
    561,697.02x = 775,142.22 × 307,048.26
  4. Step 4: Simplify right side
    561,697.02x = 238,006,069,903.54
  5. Step 5: Solve for x
    x = 238,006,069,903.54/561,697.02
  6. Step 6: Final answer
    x = 423,726.78

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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.