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Finding the Fourth Proportional to 807,230.84, 1,113,978.48 and 467,895.92

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Solution

The fourth proportional to 807,230.84, 1,113,978.48 and 467,895.92 is: 645,696.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,230.84 : 1,113,978.48 = 467,895.92 : x
  2. Step 2: Convert to fraction form
    807,230.84/1,113,978.48 = 467,895.92/x
  3. Step 3: Cross multiply
    807,230.84x = 1,113,978.48 × 467,895.92
  4. Step 4: Simplify right side
    807,230.84x = 521,225,985,759.80
  5. Step 5: Solve for x
    x = 521,225,985,759.80/807,230.84
  6. Step 6: Final answer
    x = 645,696.32

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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.