Home / 942,009.46-1,299,960.78-512,280.34

Finding the Fourth Proportional to 942,009.46, 1,299,960.78 and 512,280.34

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Solution

The fourth proportional to 942,009.46, 1,299,960.78 and 512,280.34 is: 706,940.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    942,009.46 : 1,299,960.78 = 512,280.34 : x
  2. Step 2: Convert to fraction form
    942,009.46/1,299,960.78 = 512,280.34/x
  3. Step 3: Cross multiply
    942,009.46x = 1,299,960.78 × 512,280.34
  4. Step 4: Simplify right side
    942,009.46x = 665,944,350,365.07
  5. Step 5: Solve for x
    x = 665,944,350,365.07/942,009.46
  6. Step 6: Final answer
    x = 706,940.19

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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.