Home / 677,638.05-1,016,385.80-278,321.01

Finding the Fourth Proportional to 677,638.05, 1,016,385.80 and 278,321.01

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Solution

The fourth proportional to 677,638.05, 1,016,385.80 and 278,321.01 is: 417,452.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,638.05 : 1,016,385.80 = 278,321.01 : x
  2. Step 2: Convert to fraction form
    677,638.05/1,016,385.80 = 278,321.01/x
  3. Step 3: Cross multiply
    677,638.05x = 1,016,385.80 × 278,321.01
  4. Step 4: Simplify right side
    677,638.05x = 282,881,521,014.05
  5. Step 5: Solve for x
    x = 282,881,521,014.05/677,638.05
  6. Step 6: Final answer
    x = 417,452.24

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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.