Home / 542,831.70-749,142.02-313,431.33

Finding the Fourth Proportional to 542,831.70, 749,142.02 and 313,431.33

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Solution

The fourth proportional to 542,831.70, 749,142.02 and 313,431.33 is: 432,555.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,831.70 : 749,142.02 = 313,431.33 : x
  2. Step 2: Convert to fraction form
    542,831.70/749,142.02 = 313,431.33/x
  3. Step 3: Cross multiply
    542,831.70x = 749,142.02 × 313,431.33
  4. Step 4: Simplify right side
    542,831.70x = 234,804,579,687.49
  5. Step 5: Solve for x
    x = 234,804,579,687.49/542,831.70
  6. Step 6: Final answer
    x = 432,555.03

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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.