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Finding the Fourth Proportional to 1,091,068, 1,636,660.32 and 343,172.32

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Solution

The fourth proportional to 1,091,068, 1,636,660.32 and 343,172.32 is: 514,776.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,068 : 1,636,660.32 = 343,172.32 : x
  2. Step 2: Convert to fraction form
    1,091,068/1,636,660.32 = 343,172.32/x
  3. Step 3: Cross multiply
    1,091,068x = 1,636,660.32 × 343,172.32
  4. Step 4: Simplify right side
    1,091,068x = 561,656,519,066.34
  5. Step 5: Solve for x
    x = 561,656,519,066.34/1,091,068
  6. Step 6: Final answer
    x = 514,776.82

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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.