Home / 762,401.76-1,052,240.40-422,979.36

Finding the Fourth Proportional to 762,401.76, 1,052,240.40 and 422,979.36

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Solution

The fourth proportional to 762,401.76, 1,052,240.40 and 422,979.36 is: 583,781.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,401.76 : 1,052,240.40 = 422,979.36 : x
  2. Step 2: Convert to fraction form
    762,401.76/1,052,240.40 = 422,979.36/x
  3. Step 3: Cross multiply
    762,401.76x = 1,052,240.40 × 422,979.36
  4. Step 4: Simplify right side
    762,401.76x = 445,075,970,958.14
  5. Step 5: Solve for x
    x = 445,075,970,958.14/762,401.76
  6. Step 6: Final answer
    x = 583,781.41

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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.