Home / 916,821-1,376,670.95-776,505.84

Finding the Fourth Proportional to 916,821, 1,376,670.95 and 776,505.84

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Solution

The fourth proportional to 916,821, 1,376,670.95 and 776,505.84 is: 1,165,977.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,821 : 1,376,670.95 = 776,505.84 : x
  2. Step 2: Convert to fraction form
    916,821/1,376,670.95 = 776,505.84/x
  3. Step 3: Cross multiply
    916,821x = 1,376,670.95 × 776,505.84
  4. Step 4: Simplify right side
    916,821x = 1,068,993,028,550.82
  5. Step 5: Solve for x
    x = 1,068,993,028,550.82/916,821
  6. Step 6: Final answer
    x = 1,165,977.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.