Home / 1,143,942.39-1,578,639.85-627,699.67

Finding the Fourth Proportional to 1,143,942.39, 1,578,639.85 and 627,699.67

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Solution

The fourth proportional to 1,143,942.39, 1,578,639.85 and 627,699.67 is: 866,225.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143,942.39 : 1,578,639.85 = 627,699.67 : x
  2. Step 2: Convert to fraction form
    1,143,942.39/1,578,639.85 = 627,699.67/x
  3. Step 3: Cross multiply
    1,143,942.39x = 1,578,639.85 × 627,699.67
  4. Step 4: Simplify right side
    1,143,942.39x = 990,911,707,378.00
  5. Step 5: Solve for x
    x = 990,911,707,378.00/1,143,942.39
  6. Step 6: Final answer
    x = 866,225.18

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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.