Home / 912,439.87-1,258,661.96-530,424.43

Finding the Fourth Proportional to 912,439.87, 1,258,661.96 and 530,424.43

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Solution

The fourth proportional to 912,439.87, 1,258,661.96 and 530,424.43 is: 731,692.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,439.87 : 1,258,661.96 = 530,424.43 : x
  2. Step 2: Convert to fraction form
    912,439.87/1,258,661.96 = 530,424.43/x
  3. Step 3: Cross multiply
    912,439.87x = 1,258,661.96 × 530,424.43
  4. Step 4: Simplify right side
    912,439.87x = 667,625,052,695.68
  5. Step 5: Solve for x
    x = 667,625,052,695.68/912,439.87
  6. Step 6: Final answer
    x = 731,692.11

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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.