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Finding the Fourth Proportional to 890,835.08, 1,227,746.02 and 648,734.20

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Solution

The fourth proportional to 890,835.08, 1,227,746.02 and 648,734.20 is: 894,083.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,835.08 : 1,227,746.02 = 648,734.20 : x
  2. Step 2: Convert to fraction form
    890,835.08/1,227,746.02 = 648,734.20/x
  3. Step 3: Cross multiply
    890,835.08x = 1,227,746.02 × 648,734.20
  4. Step 4: Simplify right side
    890,835.08x = 796,480,832,087.88
  5. Step 5: Solve for x
    x = 796,480,832,087.88/890,835.08
  6. Step 6: Final answer
    x = 894,083.37

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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.