Home / 942,008.20-1,299,959.07-512,279.11

Finding the Fourth Proportional to 942,008.20, 1,299,959.07 and 512,279.11

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Solution

The fourth proportional to 942,008.20, 1,299,959.07 and 512,279.11 is: 706,938.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    942,008.20 : 1,299,959.07 = 512,279.11 : x
  2. Step 2: Convert to fraction form
    942,008.20/1,299,959.07 = 512,279.11/x
  3. Step 3: Cross multiply
    942,008.20x = 1,299,959.07 × 512,279.11
  4. Step 4: Simplify right side
    942,008.20x = 665,941,868,916.23
  5. Step 5: Solve for x
    x = 665,941,868,916.23/942,008.20
  6. Step 6: Final answer
    x = 706,938.51

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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.