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Finding the Fourth Proportional to 1,151,310.56, 1,724,721.74 and 700,914.30

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Solution

The fourth proportional to 1,151,310.56, 1,724,721.74 and 700,914.30 is: 1,050,005.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,151,310.56 : 1,724,721.74 = 700,914.30 : x
  2. Step 2: Convert to fraction form
    1,151,310.56/1,724,721.74 = 700,914.30/x
  3. Step 3: Cross multiply
    1,151,310.56x = 1,724,721.74 × 700,914.30
  4. Step 4: Simplify right side
    1,151,310.56x = 1,208,882,127,582.31
  5. Step 5: Solve for x
    x = 1,208,882,127,582.31/1,151,310.56
  6. Step 6: Final answer
    x = 1,050,005.25

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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.