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Finding the Fourth Proportional to 884,363.71, 1,220,272.77 and 497,128

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Solution

The fourth proportional to 884,363.71, 1,220,272.77 and 497,128 is: 685,952.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,363.71 : 1,220,272.77 = 497,128 : x
  2. Step 2: Convert to fraction form
    884,363.71/1,220,272.77 = 497,128/x
  3. Step 3: Cross multiply
    884,363.71x = 1,220,272.77 × 497,128
  4. Step 4: Simplify right side
    884,363.71x = 606,631,761,604.56
  5. Step 5: Solve for x
    x = 606,631,761,604.56/884,363.71
  6. Step 6: Final answer
    x = 685,952.80

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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.