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Finding the Fourth Proportional to 914,314.80, 1,368,361.80 and 802,340.40

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Solution

The fourth proportional to 914,314.80, 1,368,361.80 and 802,340.40 is: 1,200,781.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    914,314.80 : 1,368,361.80 = 802,340.40 : x
  2. Step 2: Convert to fraction form
    914,314.80/1,368,361.80 = 802,340.40/x
  3. Step 3: Cross multiply
    914,314.80x = 1,368,361.80 × 802,340.40
  4. Step 4: Simplify right side
    914,314.80x = 1,097,891,953,956.72
  5. Step 5: Solve for x
    x = 1,097,891,953,956.72/914,314.80
  6. Step 6: Final answer
    x = 1,200,781.12

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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.