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Finding the Fourth Proportional to 1,260,541.60, 1,739,504.40 and 751,234.72

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Solution

The fourth proportional to 1,260,541.60, 1,739,504.40 and 751,234.72 is: 1,036,678.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,541.60 : 1,739,504.40 = 751,234.72 : x
  2. Step 2: Convert to fraction form
    1,260,541.60/1,739,504.40 = 751,234.72/x
  3. Step 3: Cross multiply
    1,260,541.60x = 1,739,504.40 × 751,234.72
  4. Step 4: Simplify right side
    1,260,541.60x = 1,306,776,100,872.77
  5. Step 5: Solve for x
    x = 1,306,776,100,872.77/1,260,541.60
  6. Step 6: Final answer
    x = 1,036,678.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.