Home / 942,008.45-1,299,959.42-512,279.36

Finding the Fourth Proportional to 942,008.45, 1,299,959.42 and 512,279.36

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Solution

The fourth proportional to 942,008.45, 1,299,959.42 and 512,279.36 is: 706,938.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    942,008.45 : 1,299,959.42 = 512,279.36 : x
  2. Step 2: Convert to fraction form
    942,008.45/1,299,959.42 = 512,279.36/x
  3. Step 3: Cross multiply
    942,008.45x = 1,299,959.42 × 512,279.36
  4. Step 4: Simplify right side
    942,008.45x = 665,942,370,642.38
  5. Step 5: Solve for x
    x = 665,942,370,642.38/942,008.45
  6. Step 6: Final answer
    x = 706,938.85

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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.