Home / 916,817.25-1,376,665.32-776,502.09

Finding the Fourth Proportional to 916,817.25, 1,376,665.32 and 776,502.09

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Solution

The fourth proportional to 916,817.25, 1,376,665.32 and 776,502.09 is: 1,165,972.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,817.25 : 1,376,665.32 = 776,502.09 : x
  2. Step 2: Convert to fraction form
    916,817.25/1,376,665.32 = 776,502.09/x
  3. Step 3: Cross multiply
    916,817.25x = 1,376,665.32 × 776,502.09
  4. Step 4: Simplify right side
    916,817.25x = 1,068,983,498,210.52
  5. Step 5: Solve for x
    x = 1,068,983,498,210.52/916,817.25
  6. Step 6: Final answer
    x = 1,165,972.28

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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.