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Finding the Fourth Proportional to 884,378.16, 1,220,474.52 and 502,469.64

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Solution

The fourth proportional to 884,378.16, 1,220,474.52 and 502,469.64 is: 693,426.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,378.16 : 1,220,474.52 = 502,469.64 : x
  2. Step 2: Convert to fraction form
    884,378.16/1,220,474.52 = 502,469.64/x
  3. Step 3: Cross multiply
    884,378.16x = 1,220,474.52 × 502,469.64
  4. Step 4: Simplify right side
    884,378.16x = 613,251,392,693.57
  5. Step 5: Solve for x
    x = 613,251,392,693.57/884,378.16
  6. Step 6: Final answer
    x = 693,426.66

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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.