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Finding the Fourth Proportional to 898,994.80, 1,348,492.20 and 810,521.20

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Solution

The fourth proportional to 898,994.80, 1,348,492.20 and 810,521.20 is: 1,215,781.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,994.80 : 1,348,492.20 = 810,521.20 : x
  2. Step 2: Convert to fraction form
    898,994.80/1,348,492.20 = 810,521.20/x
  3. Step 3: Cross multiply
    898,994.80x = 1,348,492.20 × 810,521.20
  4. Step 4: Simplify right side
    898,994.80x = 1,092,981,516,134.64
  5. Step 5: Solve for x
    x = 1,092,981,516,134.64/898,994.80
  6. Step 6: Final answer
    x = 1,215,781.80

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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.