Home / 916,812.75-1,376,658.55-776,497.57

Finding the Fourth Proportional to 916,812.75, 1,376,658.55 and 776,497.57

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Solution

The fourth proportional to 916,812.75, 1,376,658.55 and 776,497.57 is: 1,165,965.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,812.75 : 1,376,658.55 = 776,497.57 : x
  2. Step 2: Convert to fraction form
    916,812.75/1,376,658.55 = 776,497.57/x
  3. Step 3: Cross multiply
    916,812.75x = 1,376,658.55 × 776,497.57
  4. Step 4: Simplify right side
    916,812.75x = 1,068,972,016,323.70
  5. Step 5: Solve for x
    x = 1,068,972,016,323.70/916,812.75
  6. Step 6: Final answer
    x = 1,165,965.47

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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.