Home / 720,657.20-1,080,985.80-366,363.20

Finding the Fourth Proportional to 720,657.20, 1,080,985.80 and 366,363.20

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Solution

The fourth proportional to 720,657.20, 1,080,985.80 and 366,363.20 is: 549,544.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,657.20 : 1,080,985.80 = 366,363.20 : x
  2. Step 2: Convert to fraction form
    720,657.20/1,080,985.80 = 366,363.20/x
  3. Step 3: Cross multiply
    720,657.20x = 1,080,985.80 × 366,363.20
  4. Step 4: Simplify right side
    720,657.20x = 396,033,416,842.56
  5. Step 5: Solve for x
    x = 396,033,416,842.56/720,657.20
  6. Step 6: Final answer
    x = 549,544.80

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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.