Home / 728,118.72-1,092,669.93-254,808.18

Finding the Fourth Proportional to 728,118.72, 1,092,669.93 and 254,808.18

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Solution

The fourth proportional to 728,118.72, 1,092,669.93 and 254,808.18 is: 382,384.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,118.72 : 1,092,669.93 = 254,808.18 : x
  2. Step 2: Convert to fraction form
    728,118.72/1,092,669.93 = 254,808.18/x
  3. Step 3: Cross multiply
    728,118.72x = 1,092,669.93 × 254,808.18
  4. Step 4: Simplify right side
    728,118.72x = 278,421,236,204.03
  5. Step 5: Solve for x
    x = 278,421,236,204.03/728,118.72
  6. Step 6: Final answer
    x = 382,384.39

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1.5x scale

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.