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Finding the Fourth Proportional to 507,888.92, 700,871.49 and 278,438.36

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Solution

The fourth proportional to 507,888.92, 700,871.49 and 278,438.36 is: 384,236.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,888.92 : 700,871.49 = 278,438.36 : x
  2. Step 2: Convert to fraction form
    507,888.92/700,871.49 = 278,438.36/x
  3. Step 3: Cross multiply
    507,888.92x = 700,871.49 × 278,438.36
  4. Step 4: Simplify right side
    507,888.92x = 195,149,504,742.00
  5. Step 5: Solve for x
    x = 195,149,504,742.00/507,888.92
  6. Step 6: Final answer
    x = 384,236.58

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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.