Home / 1,344,639.87-2,016,955.61-421,466.13

Finding the Fourth Proportional to 1,344,639.87, 2,016,955.61 and 421,466.13

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Solution

The fourth proportional to 1,344,639.87, 2,016,955.61 and 421,466.13 is: 632,197.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,344,639.87 : 2,016,955.61 = 421,466.13 : x
  2. Step 2: Convert to fraction form
    1,344,639.87/2,016,955.61 = 421,466.13/x
  3. Step 3: Cross multiply
    1,344,639.87x = 2,016,955.61 × 421,466.13
  4. Step 4: Simplify right side
    1,344,639.87x = 850,078,475,328.49
  5. Step 5: Solve for x
    x = 850,078,475,328.49/1,344,639.87
  6. Step 6: Final answer
    x = 632,197.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.