Home / 762,573.49-1,052,315.75-418,401.65

Finding the Fourth Proportional to 762,573.49, 1,052,315.75 and 418,401.65

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Solution

The fourth proportional to 762,573.49, 1,052,315.75 and 418,401.65 is: 577,374.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,573.49 : 1,052,315.75 = 418,401.65 : x
  2. Step 2: Convert to fraction form
    762,573.49/1,052,315.75 = 418,401.65/x
  3. Step 3: Cross multiply
    762,573.49x = 1,052,315.75 × 418,401.65
  4. Step 4: Simplify right side
    762,573.49x = 440,290,649,797.78
  5. Step 5: Solve for x
    x = 440,290,649,797.78/762,573.49
  6. Step 6: Final answer
    x = 577,374.71

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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.