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Finding the Fourth Proportional to 609,895, 841,655.16 and 371,431

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Solution

The fourth proportional to 609,895, 841,655.16 and 371,431 is: 512,574.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,895 : 841,655.16 = 371,431 : x
  2. Step 2: Convert to fraction form
    609,895/841,655.16 = 371,431/x
  3. Step 3: Cross multiply
    609,895x = 841,655.16 × 371,431
  4. Step 4: Simplify right side
    609,895x = 312,616,817,733.96
  5. Step 5: Solve for x
    x = 312,616,817,733.96/609,895
  6. Step 6: Final answer
    x = 512,574.82

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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.