Home / 670,279.80-1,005,225.30-243,766.20

Finding the Fourth Proportional to 670,279.80, 1,005,225.30 and 243,766.20

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Solution

The fourth proportional to 670,279.80, 1,005,225.30 and 243,766.20 is: 365,578.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,279.80 : 1,005,225.30 = 243,766.20 : x
  2. Step 2: Convert to fraction form
    670,279.80/1,005,225.30 = 243,766.20/x
  3. Step 3: Cross multiply
    670,279.80x = 1,005,225.30 × 243,766.20
  4. Step 4: Simplify right side
    670,279.80x = 245,039,951,524.86
  5. Step 5: Solve for x
    x = 245,039,951,524.86/670,279.80
  6. Step 6: Final answer
    x = 365,578.60

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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.