Home / 676,811.10-1,015,216.65-620,823.90

Finding the Fourth Proportional to 676,811.10, 1,015,216.65 and 620,823.90

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Solution

The fourth proportional to 676,811.10, 1,015,216.65 and 620,823.90 is: 931,235.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,811.10 : 1,015,216.65 = 620,823.90 : x
  2. Step 2: Convert to fraction form
    676,811.10/1,015,216.65 = 620,823.90/x
  3. Step 3: Cross multiply
    676,811.10x = 1,015,216.65 × 620,823.90
  4. Step 4: Simplify right side
    676,811.10x = 630,270,759,997.94
  5. Step 5: Solve for x
    x = 630,270,759,997.94/676,811.10
  6. Step 6: Final answer
    x = 931,235.85

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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.