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Finding the Fourth Proportional to 1,927,573.28, 2,894,008.08 and 981,579.68

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Solution

The fourth proportional to 1,927,573.28, 2,894,008.08 and 981,579.68 is: 1,473,718.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,927,573.28 : 2,894,008.08 = 981,579.68 : x
  2. Step 2: Convert to fraction form
    1,927,573.28/2,894,008.08 = 981,579.68/x
  3. Step 3: Cross multiply
    1,927,573.28x = 2,894,008.08 × 981,579.68
  4. Step 4: Simplify right side
    1,927,573.28x = 2,840,699,525,083.81
  5. Step 5: Solve for x
    x = 2,840,699,525,083.81/1,927,573.28
  6. Step 6: Final answer
    x = 1,473,718.04

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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.