Home / 1,369,883.77-1,890,640.15-788,995.24

Finding the Fourth Proportional to 1,369,883.77, 1,890,640.15 and 788,995.24

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Solution

The fourth proportional to 1,369,883.77, 1,890,640.15 and 788,995.24 is: 1,088,928.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,369,883.77 : 1,890,640.15 = 788,995.24 : x
  2. Step 2: Convert to fraction form
    1,369,883.77/1,890,640.15 = 788,995.24/x
  3. Step 3: Cross multiply
    1,369,883.77x = 1,890,640.15 × 788,995.24
  4. Step 4: Simplify right side
    1,369,883.77x = 1,491,706,072,203.80
  5. Step 5: Solve for x
    x = 1,491,706,072,203.80/1,369,883.77
  6. Step 6: Final answer
    x = 1,088,928.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.