Home / 762,871.17-1,052,763.53-418,709.36

Finding the Fourth Proportional to 762,871.17, 1,052,763.53 and 418,709.36

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Solution

The fourth proportional to 762,871.17, 1,052,763.53 and 418,709.36 is: 577,819.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,871.17 : 1,052,763.53 = 418,709.36 : x
  2. Step 2: Convert to fraction form
    762,871.17/1,052,763.53 = 418,709.36/x
  3. Step 3: Cross multiply
    762,871.17x = 1,052,763.53 × 418,709.36
  4. Step 4: Simplify right side
    762,871.17x = 440,801,943,877.64
  5. Step 5: Solve for x
    x = 440,801,943,877.64/762,871.17
  6. Step 6: Final answer
    x = 577,819.64

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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.