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Finding the Fourth Proportional to 638,504.73, 880,220.66 and 502,301.94

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Solution

The fourth proportional to 638,504.73, 880,220.66 and 502,301.94 is: 692,456.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,504.73 : 880,220.66 = 502,301.94 : x
  2. Step 2: Convert to fraction form
    638,504.73/880,220.66 = 502,301.94/x
  3. Step 3: Cross multiply
    638,504.73x = 880,220.66 × 502,301.94
  4. Step 4: Simplify right side
    638,504.73x = 442,136,542,634.57
  5. Step 5: Solve for x
    x = 442,136,542,634.57/638,504.73
  6. Step 6: Final answer
    x = 692,456.17

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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.