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Finding the Fourth Proportional to 893,879.40, 1,339,652.70 and 360,964.20

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Solution

The fourth proportional to 893,879.40, 1,339,652.70 and 360,964.20 is: 540,975.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,879.40 : 1,339,652.70 = 360,964.20 : x
  2. Step 2: Convert to fraction form
    893,879.40/1,339,652.70 = 360,964.20/x
  3. Step 3: Cross multiply
    893,879.40x = 1,339,652.70 × 360,964.20
  4. Step 4: Simplify right side
    893,879.40x = 483,566,665,133.34
  5. Step 5: Solve for x
    x = 483,566,665,133.34/893,879.40
  6. Step 6: Final answer
    x = 540,975.29

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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.