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Finding the Fourth Proportional to 884,281, 1,220,504.60 and 561,928.12

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Solution

The fourth proportional to 884,281, 1,220,504.60 and 561,928.12 is: 775,585.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,281 : 1,220,504.60 = 561,928.12 : x
  2. Step 2: Convert to fraction form
    884,281/1,220,504.60 = 561,928.12/x
  3. Step 3: Cross multiply
    884,281x = 1,220,504.60 × 561,928.12
  4. Step 4: Simplify right side
    884,281x = 685,835,855,329.35
  5. Step 5: Solve for x
    x = 685,835,855,329.35/884,281
  6. Step 6: Final answer
    x = 775,585.88

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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.