Home / 728,315.02-1,005,079.06-422,573.48

Finding the Fourth Proportional to 728,315.02, 1,005,079.06 and 422,573.48

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Solution

The fourth proportional to 728,315.02, 1,005,079.06 and 422,573.48 is: 583,153.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,315.02 : 1,005,079.06 = 422,573.48 : x
  2. Step 2: Convert to fraction form
    728,315.02/1,005,079.06 = 422,573.48/x
  3. Step 3: Cross multiply
    728,315.02x = 1,005,079.06 × 422,573.48
  4. Step 4: Simplify right side
    728,315.02x = 424,719,756,059.33
  5. Step 5: Solve for x
    x = 424,719,756,059.33/728,315.02
  6. Step 6: Final answer
    x = 583,153.92

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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.