Home / 1,226,039.49-1,691,680.95-716,643.45

Finding the Fourth Proportional to 1,226,039.49, 1,691,680.95 and 716,643.45

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Solution

The fourth proportional to 1,226,039.49, 1,691,680.95 and 716,643.45 is: 988,819.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226,039.49 : 1,691,680.95 = 716,643.45 : x
  2. Step 2: Convert to fraction form
    1,226,039.49/1,691,680.95 = 716,643.45/x
  3. Step 3: Cross multiply
    1,226,039.49x = 1,691,680.95 × 716,643.45
  4. Step 4: Simplify right side
    1,226,039.49x = 1,212,332,072,307.28
  5. Step 5: Solve for x
    x = 1,212,332,072,307.28/1,226,039.49
  6. Step 6: Final answer
    x = 988,819.76

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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.