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Finding the Fourth Proportional to 914,078.80, 1,368,007.80 and 802,104.40

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Solution

The fourth proportional to 914,078.80, 1,368,007.80 and 802,104.40 is: 1,200,427.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    914,078.80 : 1,368,007.80 = 802,104.40 : x
  2. Step 2: Convert to fraction form
    914,078.80/1,368,007.80 = 802,104.40/x
  3. Step 3: Cross multiply
    914,078.80x = 1,368,007.80 × 802,104.40
  4. Step 4: Simplify right side
    914,078.80x = 1,097,285,075,614.32
  5. Step 5: Solve for x
    x = 1,097,285,075,614.32/914,078.80
  6. Step 6: Final answer
    x = 1,200,427.22

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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.