Home / 762,426.39-1,052,140.82-422,885.91

Finding the Fourth Proportional to 762,426.39, 1,052,140.82 and 422,885.91

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Solution

The fourth proportional to 762,426.39, 1,052,140.82 and 422,885.91 is: 583,578.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,426.39 : 1,052,140.82 = 422,885.91 : x
  2. Step 2: Convert to fraction form
    762,426.39/1,052,140.82 = 422,885.91/x
  3. Step 3: Cross multiply
    762,426.39x = 1,052,140.82 × 422,885.91
  4. Step 4: Simplify right side
    762,426.39x = 444,935,525,999.42
  5. Step 5: Solve for x
    x = 444,935,525,999.42/762,426.39
  6. Step 6: Final answer
    x = 583,578.34

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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.