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Finding the Fourth Proportional to 611,068.41, 843,283.65 and 339,153.91

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Solution

The fourth proportional to 611,068.41, 843,283.65 and 339,153.91 is: 468,037.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,068.41 : 843,283.65 = 339,153.91 : x
  2. Step 2: Convert to fraction form
    611,068.41/843,283.65 = 339,153.91/x
  3. Step 3: Cross multiply
    611,068.41x = 843,283.65 × 339,153.91
  4. Step 4: Simplify right side
    611,068.41x = 286,002,947,136.57
  5. Step 5: Solve for x
    x = 286,002,947,136.57/611,068.41
  6. Step 6: Final answer
    x = 468,037.53

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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.