Home / 1,888,412.64-2,833,456.20-989,640.72

Finding the Fourth Proportional to 1,888,412.64, 2,833,456.20 and 989,640.72

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Solution

The fourth proportional to 1,888,412.64, 2,833,456.20 and 989,640.72 is: 1,484,899.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,888,412.64 : 2,833,456.20 = 989,640.72 : x
  2. Step 2: Convert to fraction form
    1,888,412.64/2,833,456.20 = 989,640.72/x
  3. Step 3: Cross multiply
    1,888,412.64x = 2,833,456.20 × 989,640.72
  4. Step 4: Simplify right side
    1,888,412.64x = 2,804,103,633,856.46
  5. Step 5: Solve for x
    x = 2,804,103,633,856.46/1,888,412.64
  6. Step 6: Final answer
    x = 1,484,899.84

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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.