Home / 942,099.70-1,300,103.70-512,382.94

Finding the Fourth Proportional to 942,099.70, 1,300,103.70 and 512,382.94

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Solution

The fourth proportional to 942,099.70, 1,300,103.70 and 512,382.94 is: 707,091.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    942,099.70 : 1,300,103.70 = 512,382.94 : x
  2. Step 2: Convert to fraction form
    942,099.70/1,300,103.70 = 512,382.94/x
  3. Step 3: Cross multiply
    942,099.70x = 1,300,103.70 × 512,382.94
  4. Step 4: Simplify right side
    942,099.70x = 666,150,956,110.88
  5. Step 5: Solve for x
    x = 666,150,956,110.88/942,099.70
  6. Step 6: Final answer
    x = 707,091.78

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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.