Home / 728,350.48-1,005,132.54-422,497.72

Finding the Fourth Proportional to 728,350.48, 1,005,132.54 and 422,497.72

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Solution

The fourth proportional to 728,350.48, 1,005,132.54 and 422,497.72 is: 583,052.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,350.48 : 1,005,132.54 = 422,497.72 : x
  2. Step 2: Convert to fraction form
    728,350.48/1,005,132.54 = 422,497.72/x
  3. Step 3: Cross multiply
    728,350.48x = 1,005,132.54 × 422,497.72
  4. Step 4: Simplify right side
    728,350.48x = 424,666,206,447.81
  5. Step 5: Solve for x
    x = 424,666,206,447.81/728,350.48
  6. Step 6: Final answer
    x = 583,052.00

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1.5x scale

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.