Home / 942,009.96-1,299,961.47-512,280.84

Finding the Fourth Proportional to 942,009.96, 1,299,961.47 and 512,280.84

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Solution

The fourth proportional to 942,009.96, 1,299,961.47 and 512,280.84 is: 706,940.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    942,009.96 : 1,299,961.47 = 512,280.84 : x
  2. Step 2: Convert to fraction form
    942,009.96/1,299,961.47 = 512,280.84/x
  3. Step 3: Cross multiply
    942,009.96x = 1,299,961.47 × 512,280.84
  4. Step 4: Simplify right side
    942,009.96x = 665,945,353,819.24
  5. Step 5: Solve for x
    x = 665,945,353,819.24/942,009.96
  6. Step 6: Final answer
    x = 706,940.88

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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.