Home / 1,399,438.33-1,931,820.77-940,818.90

Finding the Fourth Proportional to 1,399,438.33, 1,931,820.77 and 940,818.90

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Solution

The fourth proportional to 1,399,438.33, 1,931,820.77 and 940,818.90 is: 1,298,730.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,399,438.33 : 1,931,820.77 = 940,818.90 : x
  2. Step 2: Convert to fraction form
    1,399,438.33/1,931,820.77 = 940,818.90/x
  3. Step 3: Cross multiply
    1,399,438.33x = 1,931,820.77 × 940,818.90
  4. Step 4: Simplify right side
    1,399,438.33x = 1,817,493,490,558.44
  5. Step 5: Solve for x
    x = 1,817,493,490,558.44/1,399,438.33
  6. Step 6: Final answer
    x = 1,298,730.67

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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.