Home / 1,260,391.84-1,886,146.80-787,300

Finding the Fourth Proportional to 1,260,391.84, 1,886,146.80 and 787,300

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Solution

The fourth proportional to 1,260,391.84, 1,886,146.80 and 787,300 is: 1,178,175.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,391.84 : 1,886,146.80 = 787,300 : x
  2. Step 2: Convert to fraction form
    1,260,391.84/1,886,146.80 = 787,300/x
  3. Step 3: Cross multiply
    1,260,391.84x = 1,886,146.80 × 787,300
  4. Step 4: Simplify right side
    1,260,391.84x = 1,484,963,375,640
  5. Step 5: Solve for x
    x = 1,484,963,375,640/1,260,391.84
  6. Step 6: Final answer
    x = 1,178,175.97

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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.