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Finding the Fourth Proportional to 552,105.92, 761,901.58 and 310,389.56

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Solution

The fourth proportional to 552,105.92, 761,901.58 and 310,389.56 is: 428,335.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,105.92 : 761,901.58 = 310,389.56 : x
  2. Step 2: Convert to fraction form
    552,105.92/761,901.58 = 310,389.56/x
  3. Step 3: Cross multiply
    552,105.92x = 761,901.58 × 310,389.56
  4. Step 4: Simplify right side
    552,105.92x = 236,486,296,179.51
  5. Step 5: Solve for x
    x = 236,486,296,179.51/552,105.92
  6. Step 6: Final answer
    x = 428,335.01

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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.