Home / 1,992,905.46-2,989,832.76-645,068.34

Finding the Fourth Proportional to 1,992,905.46, 2,989,832.76 and 645,068.34

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Solution

The fourth proportional to 1,992,905.46, 2,989,832.76 and 645,068.34 is: 967,756.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,905.46 : 2,989,832.76 = 645,068.34 : x
  2. Step 2: Convert to fraction form
    1,992,905.46/2,989,832.76 = 645,068.34/x
  3. Step 3: Cross multiply
    1,992,905.46x = 2,989,832.76 × 645,068.34
  4. Step 4: Simplify right side
    1,992,905.46x = 1,928,646,455,370.82
  5. Step 5: Solve for x
    x = 1,928,646,455,370.82/1,992,905.46
  6. Step 6: Final answer
    x = 967,756.12

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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.