Home / 728,187.60-1,092,281.40-254,920.80

Finding the Fourth Proportional to 728,187.60, 1,092,281.40 and 254,920.80

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Solution

The fourth proportional to 728,187.60, 1,092,281.40 and 254,920.80 is: 382,381.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,187.60 : 1,092,281.40 = 254,920.80 : x
  2. Step 2: Convert to fraction form
    728,187.60/1,092,281.40 = 254,920.80/x
  3. Step 3: Cross multiply
    728,187.60x = 1,092,281.40 × 254,920.80
  4. Step 4: Simplify right side
    728,187.60x = 278,445,248,313.12
  5. Step 5: Solve for x
    x = 278,445,248,313.12/728,187.60
  6. Step 6: Final answer
    x = 382,381.20

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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.