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Finding the Fourth Proportional to 893,230.72, 1,232,662.95 and 485,333.61

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Solution

The fourth proportional to 893,230.72, 1,232,662.95 and 485,333.61 is: 669,762.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,230.72 : 1,232,662.95 = 485,333.61 : x
  2. Step 2: Convert to fraction form
    893,230.72/1,232,662.95 = 485,333.61/x
  3. Step 3: Cross multiply
    893,230.72x = 1,232,662.95 × 485,333.61
  4. Step 4: Simplify right side
    893,230.72x = 598,252,759,436.75
  5. Step 5: Solve for x
    x = 598,252,759,436.75/893,230.72
  6. Step 6: Final answer
    x = 669,762.86

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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.