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Finding the Fourth Proportional to 921,307.54, 1,374,754.43 and 825,562.05

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Solution

The fourth proportional to 921,307.54, 1,374,754.43 and 825,562.05 is: 1,231,885.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,307.54 : 1,374,754.43 = 825,562.05 : x
  2. Step 2: Convert to fraction form
    921,307.54/1,374,754.43 = 825,562.05/x
  3. Step 3: Cross multiply
    921,307.54x = 1,374,754.43 × 825,562.05
  4. Step 4: Simplify right side
    921,307.54x = 1,134,945,085,477.38
  5. Step 5: Solve for x
    x = 1,134,945,085,477.38/921,307.54
  6. Step 6: Final answer
    x = 1,231,885.16

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.