Home / 1,992,865.34-2,989,772.54-645,028.18

Finding the Fourth Proportional to 1,992,865.34, 2,989,772.54 and 645,028.18

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Solution

The fourth proportional to 1,992,865.34, 2,989,772.54 and 645,028.18 is: 967,695.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,865.34 : 2,989,772.54 = 645,028.18 : x
  2. Step 2: Convert to fraction form
    1,992,865.34/2,989,772.54 = 645,028.18/x
  3. Step 3: Cross multiply
    1,992,865.34x = 2,989,772.54 × 645,028.18
  4. Step 4: Simplify right side
    1,992,865.34x = 1,928,487,534,228.32
  5. Step 5: Solve for x
    x = 1,928,487,534,228.32/1,992,865.34
  6. Step 6: Final answer
    x = 967,695.86

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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.