Home / 942,407.46-1,299,939.13-821,838.15

Finding the Fourth Proportional to 942,407.46, 1,299,939.13 and 821,838.15

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Solution

The fourth proportional to 942,407.46, 1,299,939.13 and 821,838.15 is: 1,133,628.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    942,407.46 : 1,299,939.13 = 821,838.15 : x
  2. Step 2: Convert to fraction form
    942,407.46/1,299,939.13 = 821,838.15/x
  3. Step 3: Cross multiply
    942,407.46x = 1,299,939.13 × 821,838.15
  4. Step 4: Simplify right side
    942,407.46x = 1,068,339,570,739.11
  5. Step 5: Solve for x
    x = 1,068,339,570,739.11/942,407.46
  6. Step 6: Final answer
    x = 1,133,628.09

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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.