Home / 728,130.60-1,092,020.94-372,961.80

Finding the Fourth Proportional to 728,130.60, 1,092,020.94 and 372,961.80

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Solution

The fourth proportional to 728,130.60, 1,092,020.94 and 372,961.80 is: 559,353.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,130.60 : 1,092,020.94 = 372,961.80 : x
  2. Step 2: Convert to fraction form
    728,130.60/1,092,020.94 = 372,961.80/x
  3. Step 3: Cross multiply
    728,130.60x = 1,092,020.94 × 372,961.80
  4. Step 4: Simplify right side
    728,130.60x = 407,282,095,420.09
  5. Step 5: Solve for x
    x = 407,282,095,420.09/728,130.60
  6. Step 6: Final answer
    x = 559,353.08

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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.