Home / 728,505.44-1,005,971.98-457,040

Finding the Fourth Proportional to 728,505.44, 1,005,971.98 and 457,040

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Solution

The fourth proportional to 728,505.44, 1,005,971.98 and 457,040 is: 631,113.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,505.44 : 1,005,971.98 = 457,040 : x
  2. Step 2: Convert to fraction form
    728,505.44/1,005,971.98 = 457,040/x
  3. Step 3: Cross multiply
    728,505.44x = 1,005,971.98 × 457,040
  4. Step 4: Simplify right side
    728,505.44x = 459,769,433,739.20
  5. Step 5: Solve for x
    x = 459,769,433,739.20/728,505.44
  6. Step 6: Final answer
    x = 631,113.25

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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.