Home / 1,992,803.64-2,989,679.76-644,966.25

Finding the Fourth Proportional to 1,992,803.64, 2,989,679.76 and 644,966.25

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Solution

The fourth proportional to 1,992,803.64, 2,989,679.76 and 644,966.25 is: 967,602.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,803.64 : 2,989,679.76 = 644,966.25 : x
  2. Step 2: Convert to fraction form
    1,992,803.64/2,989,679.76 = 644,966.25/x
  3. Step 3: Cross multiply
    1,992,803.64x = 2,989,679.76 × 644,966.25
  4. Step 4: Simplify right side
    1,992,803.64x = 1,928,242,543,508.10
  5. Step 5: Solve for x
    x = 1,928,242,543,508.10/1,992,803.64
  6. Step 6: Final answer
    x = 967,602.88

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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.