Home / 684,751.30-1,025,158.65-419,030.80

Finding the Fourth Proportional to 684,751.30, 1,025,158.65 and 419,030.80

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Solution

The fourth proportional to 684,751.30, 1,025,158.65 and 419,030.80 is: 627,341.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,751.30 : 1,025,158.65 = 419,030.80 : x
  2. Step 2: Convert to fraction form
    684,751.30/1,025,158.65 = 419,030.80/x
  3. Step 3: Cross multiply
    684,751.30x = 1,025,158.65 × 419,030.80
  4. Step 4: Simplify right side
    684,751.30x = 429,573,049,236.42
  5. Step 5: Solve for x
    x = 429,573,049,236.42/684,751.30
  6. Step 6: Final answer
    x = 627,341.71

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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.