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Finding the Fourth Proportional to 721,962.75, 994,083.25 and 641,250.03

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Solution

The fourth proportional to 721,962.75, 994,083.25 and 641,250.03 is: 882,948.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,962.75 : 994,083.25 = 641,250.03 : x
  2. Step 2: Convert to fraction form
    721,962.75/994,083.25 = 641,250.03/x
  3. Step 3: Cross multiply
    721,962.75x = 994,083.25 × 641,250.03
  4. Step 4: Simplify right side
    721,962.75x = 637,455,913,885.00
  5. Step 5: Solve for x
    x = 637,455,913,885.00/721,962.75
  6. Step 6: Final answer
    x = 882,948.48

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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.