Home / 809,466.84-1,117,442.22-469,869.72

Finding the Fourth Proportional to 809,466.84, 1,117,442.22 and 469,869.72

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Solution

The fourth proportional to 809,466.84, 1,117,442.22 and 469,869.72 is: 648,639.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,466.84 : 1,117,442.22 = 469,869.72 : x
  2. Step 2: Convert to fraction form
    809,466.84/1,117,442.22 = 469,869.72/x
  3. Step 3: Cross multiply
    809,466.84x = 1,117,442.22 × 469,869.72
  4. Step 4: Simplify right side
    809,466.84x = 525,052,263,027.58
  5. Step 5: Solve for x
    x = 525,052,263,027.58/809,466.84
  6. Step 6: Final answer
    x = 648,639.62

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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.