Home / 910,511.10-1,365,766.65-279,342.90

Finding the Fourth Proportional to 910,511.10, 1,365,766.65 and 279,342.90

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Solution

The fourth proportional to 910,511.10, 1,365,766.65 and 279,342.90 is: 419,014.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,511.10 : 1,365,766.65 = 279,342.90 : x
  2. Step 2: Convert to fraction form
    910,511.10/1,365,766.65 = 279,342.90/x
  3. Step 3: Cross multiply
    910,511.10x = 1,365,766.65 × 279,342.90
  4. Step 4: Simplify right side
    910,511.10x = 381,517,216,734.29
  5. Step 5: Solve for x
    x = 381,517,216,734.29/910,511.10
  6. Step 6: Final answer
    x = 419,014.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.