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Finding the Fourth Proportional to 1,120,771, 1,546,663.98 and 718,363

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Solution

The fourth proportional to 1,120,771, 1,546,663.98 and 718,363 is: 991,340.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,771 : 1,546,663.98 = 718,363 : x
  2. Step 2: Convert to fraction form
    1,120,771/1,546,663.98 = 718,363/x
  3. Step 3: Cross multiply
    1,120,771x = 1,546,663.98 × 718,363
  4. Step 4: Simplify right side
    1,120,771x = 1,111,066,176,664.74
  5. Step 5: Solve for x
    x = 1,111,066,176,664.74/1,120,771
  6. Step 6: Final answer
    x = 991,340.94

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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.