Home / 762,901.05-1,052,816.79-418,769.13

Finding the Fourth Proportional to 762,901.05, 1,052,816.79 and 418,769.13

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Solution

The fourth proportional to 762,901.05, 1,052,816.79 and 418,769.13 is: 577,908.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,901.05 : 1,052,816.79 = 418,769.13 : x
  2. Step 2: Convert to fraction form
    762,901.05/1,052,816.79 = 418,769.13/x
  3. Step 3: Cross multiply
    762,901.05x = 1,052,816.79 × 418,769.13
  4. Step 4: Simplify right side
    762,901.05x = 440,887,171,197.69
  5. Step 5: Solve for x
    x = 440,887,171,197.69/762,901.05
  6. Step 6: Final answer
    x = 577,908.72

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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.