Home / 878,994.80-1,318,492.20-869,663.60

Finding the Fourth Proportional to 878,994.80, 1,318,492.20 and 869,663.60

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Solution

The fourth proportional to 878,994.80, 1,318,492.20 and 869,663.60 is: 1,304,495.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,994.80 : 1,318,492.20 = 869,663.60 : x
  2. Step 2: Convert to fraction form
    878,994.80/1,318,492.20 = 869,663.60/x
  3. Step 3: Cross multiply
    878,994.80x = 1,318,492.20 × 869,663.60
  4. Step 4: Simplify right side
    878,994.80x = 1,146,644,673,223.92
  5. Step 5: Solve for x
    x = 1,146,644,673,223.92/878,994.80
  6. Step 6: Final answer
    x = 1,304,495.40

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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.