Home / 1,396,631.40-2,094,564.79-385,511.64

Finding the Fourth Proportional to 1,396,631.40, 2,094,564.79 and 385,511.64

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Solution

The fourth proportional to 1,396,631.40, 2,094,564.79 and 385,511.64 is: 578,161.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,396,631.40 : 2,094,564.79 = 385,511.64 : x
  2. Step 2: Convert to fraction form
    1,396,631.40/2,094,564.79 = 385,511.64/x
  3. Step 3: Cross multiply
    1,396,631.40x = 2,094,564.79 × 385,511.64
  4. Step 4: Simplify right side
    1,396,631.40x = 807,479,107,279.16
  5. Step 5: Solve for x
    x = 807,479,107,279.16/1,396,631.40
  6. Step 6: Final answer
    x = 578,161.93

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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.