Home / 1,399,433.21-1,931,813.70-940,813.77

Finding the Fourth Proportional to 1,399,433.21, 1,931,813.70 and 940,813.77

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Solution

The fourth proportional to 1,399,433.21, 1,931,813.70 and 940,813.77 is: 1,298,723.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,399,433.21 : 1,931,813.70 = 940,813.77 : x
  2. Step 2: Convert to fraction form
    1,399,433.21/1,931,813.70 = 940,813.77/x
  3. Step 3: Cross multiply
    1,399,433.21x = 1,931,813.70 × 940,813.77
  4. Step 4: Simplify right side
    1,399,433.21x = 1,817,476,939,042.98
  5. Step 5: Solve for x
    x = 1,817,476,939,042.98/1,399,433.21
  6. Step 6: Final answer
    x = 1,298,723.60

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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.