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Finding the Fourth Proportional to 609,472.49, 841,212 and 405,531.97

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Solution

The fourth proportional to 609,472.49, 841,212 and 405,531.97 is: 559,727.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,472.49 : 841,212 = 405,531.97 : x
  2. Step 2: Convert to fraction form
    609,472.49/841,212 = 405,531.97/x
  3. Step 3: Cross multiply
    609,472.49x = 841,212 × 405,531.97
  4. Step 4: Simplify right side
    609,472.49x = 341,138,357,444.61
  5. Step 5: Solve for x
    x = 341,138,357,444.61/609,472.49
  6. Step 6: Final answer
    x = 559,727.25

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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.