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Finding the Fourth Proportional to 1,194,699.06, 1,787,837.40 and 745,630.20

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Solution

The fourth proportional to 1,194,699.06, 1,787,837.40 and 745,630.20 is: 1,115,817.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,194,699.06 : 1,787,837.40 = 745,630.20 : x
  2. Step 2: Convert to fraction form
    1,194,699.06/1,787,837.40 = 745,630.20/x
  3. Step 3: Cross multiply
    1,194,699.06x = 1,787,837.40 × 745,630.20
  4. Step 4: Simplify right side
    1,194,699.06x = 1,333,065,558,129.48
  5. Step 5: Solve for x
    x = 1,333,065,558,129.48/1,194,699.06
  6. Step 6: Final answer
    x = 1,115,817.03

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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.