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Finding the Fourth Proportional to 884,395.96, 1,220,470.54 and 502,443.70

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Solution

The fourth proportional to 884,395.96, 1,220,470.54 and 502,443.70 is: 693,374.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,395.96 : 1,220,470.54 = 502,443.70 : x
  2. Step 2: Convert to fraction form
    884,395.96/1,220,470.54 = 502,443.70/x
  3. Step 3: Cross multiply
    884,395.96x = 1,220,470.54 × 502,443.70
  4. Step 4: Simplify right side
    884,395.96x = 613,217,729,551.31
  5. Step 5: Solve for x
    x = 613,217,729,551.31/884,395.96
  6. Step 6: Final answer
    x = 693,374.64

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Double scale
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1.5x scale

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.