Home / 1,179,071.49-1,768,981.07-420,896.71

Finding the Fourth Proportional to 1,179,071.49, 1,768,981.07 and 420,896.71

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Solution

The fourth proportional to 1,179,071.49, 1,768,981.07 and 420,896.71 is: 631,478.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,179,071.49 : 1,768,981.07 = 420,896.71 : x
  2. Step 2: Convert to fraction form
    1,179,071.49/1,768,981.07 = 420,896.71/x
  3. Step 3: Cross multiply
    1,179,071.49x = 1,768,981.07 × 420,896.71
  4. Step 4: Simplify right side
    1,179,071.49x = 744,558,312,415.28
  5. Step 5: Solve for x
    x = 744,558,312,415.28/1,179,071.49
  6. Step 6: Final answer
    x = 631,478.51

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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.