Home / 806,445.90-1,112,886.79-443,861.98

Finding the Fourth Proportional to 806,445.90, 1,112,886.79 and 443,861.98

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Solution

The fourth proportional to 806,445.90, 1,112,886.79 and 443,861.98 is: 612,524.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,445.90 : 1,112,886.79 = 443,861.98 : x
  2. Step 2: Convert to fraction form
    806,445.90/1,112,886.79 = 443,861.98/x
  3. Step 3: Cross multiply
    806,445.90x = 1,112,886.79 × 443,861.98
  4. Step 4: Simplify right side
    806,445.90x = 493,968,129,921.29
  5. Step 5: Solve for x
    x = 493,968,129,921.29/806,445.90
  6. Step 6: Final answer
    x = 612,524.82

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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.