Home / 1,161,639.63-1,603,041.84-645,395.85

Finding the Fourth Proportional to 1,161,639.63, 1,603,041.84 and 645,395.85

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Solution

The fourth proportional to 1,161,639.63, 1,603,041.84 and 645,395.85 is: 890,634.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,161,639.63 : 1,603,041.84 = 645,395.85 : x
  2. Step 2: Convert to fraction form
    1,161,639.63/1,603,041.84 = 645,395.85/x
  3. Step 3: Cross multiply
    1,161,639.63x = 1,603,041.84 × 645,395.85
  4. Step 4: Simplify right side
    1,161,639.63x = 1,034,596,550,912.36
  5. Step 5: Solve for x
    x = 1,034,596,550,912.36/1,161,639.63
  6. Step 6: Final answer
    x = 890,634.69

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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.