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Finding the Fourth Proportional to 1,434,963, 1,980,248.94 and 831,700.92

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Solution

The fourth proportional to 1,434,963, 1,980,248.94 and 831,700.92 is: 1,147,747.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,434,963 : 1,980,248.94 = 831,700.92 : x
  2. Step 2: Convert to fraction form
    1,434,963/1,980,248.94 = 831,700.92/x
  3. Step 3: Cross multiply
    1,434,963x = 1,980,248.94 × 831,700.92
  4. Step 4: Simplify right side
    1,434,963x = 1,646,974,865,227.03
  5. Step 5: Solve for x
    x = 1,646,974,865,227.03/1,434,963
  6. Step 6: Final answer
    x = 1,147,747.27

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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.