Home / 916,815.75-1,376,663.06-776,500.58

Finding the Fourth Proportional to 916,815.75, 1,376,663.06 and 776,500.58

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Solution

The fourth proportional to 916,815.75, 1,376,663.06 and 776,500.58 is: 1,165,969.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,815.75 : 1,376,663.06 = 776,500.58 : x
  2. Step 2: Convert to fraction form
    916,815.75/1,376,663.06 = 776,500.58/x
  3. Step 3: Cross multiply
    916,815.75x = 1,376,663.06 × 776,500.58
  4. Step 4: Simplify right side
    916,815.75x = 1,068,979,653,788.76
  5. Step 5: Solve for x
    x = 1,068,979,653,788.76/916,815.75
  6. Step 6: Final answer
    x = 1,165,969.99

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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.