Home / 1,421,465.40-1,961,593.07-776,890.17

Finding the Fourth Proportional to 1,421,465.40, 1,961,593.07 and 776,890.17

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Solution

The fourth proportional to 1,421,465.40, 1,961,593.07 and 776,890.17 is: 1,072,092.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,465.40 : 1,961,593.07 = 776,890.17 : x
  2. Step 2: Convert to fraction form
    1,421,465.40/1,961,593.07 = 776,890.17/x
  3. Step 3: Cross multiply
    1,421,465.40x = 1,961,593.07 × 776,890.17
  4. Step 4: Simplify right side
    1,421,465.40x = 1,523,942,369,738.67
  5. Step 5: Solve for x
    x = 1,523,942,369,738.67/1,421,465.40
  6. Step 6: Final answer
    x = 1,072,092.48

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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.