Home / 1,399,625.37-1,931,544.50-787,817.66

Finding the Fourth Proportional to 1,399,625.37, 1,931,544.50 and 787,817.66

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Solution

The fourth proportional to 1,399,625.37, 1,931,544.50 and 787,817.66 is: 1,087,222.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,399,625.37 : 1,931,544.50 = 787,817.66 : x
  2. Step 2: Convert to fraction form
    1,399,625.37/1,931,544.50 = 787,817.66/x
  3. Step 3: Cross multiply
    1,399,625.37x = 1,931,544.50 × 787,817.66
  4. Step 4: Simplify right side
    1,399,625.37x = 1,521,704,854,579.06
  5. Step 5: Solve for x
    x = 1,521,704,854,579.06/1,399,625.37
  6. Step 6: Final answer
    x = 1,087,222.97

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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.