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Finding the Fourth Proportional to 1,242,733.64, 1,714,956.09 and 698,869.27

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Solution

The fourth proportional to 1,242,733.64, 1,714,956.09 and 698,869.27 is: 964,430.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,733.64 : 1,714,956.09 = 698,869.27 : x
  2. Step 2: Convert to fraction form
    1,242,733.64/1,714,956.09 = 698,869.27/x
  3. Step 3: Cross multiply
    1,242,733.64x = 1,714,956.09 × 698,869.27
  4. Step 4: Simplify right side
    1,242,733.64x = 1,198,530,102,125.57
  5. Step 5: Solve for x
    x = 1,198,530,102,125.57/1,242,733.64
  6. Step 6: Final answer
    x = 964,430.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.