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Finding the Fourth Proportional to 1,327,713.03, 1,984,011.24 and 996,921.35

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Solution

The fourth proportional to 1,327,713.03, 1,984,011.24 and 996,921.35 is: 1,489,706.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,327,713.03 : 1,984,011.24 = 996,921.35 : x
  2. Step 2: Convert to fraction form
    1,327,713.03/1,984,011.24 = 996,921.35/x
  3. Step 3: Cross multiply
    1,327,713.03x = 1,984,011.24 × 996,921.35
  4. Step 4: Simplify right side
    1,327,713.03x = 1,977,903,153,875.92
  5. Step 5: Solve for x
    x = 1,977,903,153,875.92/1,327,713.03
  6. Step 6: Final answer
    x = 1,489,706.82

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.