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Finding the Fourth Proportional to 717,452, 990,083.76 and 415,820.96

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Solution

The fourth proportional to 717,452, 990,083.76 and 415,820.96 is: 573,832.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,452 : 990,083.76 = 415,820.96 : x
  2. Step 2: Convert to fraction form
    717,452/990,083.76 = 415,820.96/x
  3. Step 3: Cross multiply
    717,452x = 990,083.76 × 415,820.96
  4. Step 4: Simplify right side
    717,452x = 411,697,579,563.61
  5. Step 5: Solve for x
    x = 411,697,579,563.61/717,452
  6. Step 6: Final answer
    x = 573,832.92

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.