Home / 721,039.12-1,080,612.60-530,608.12

Finding the Fourth Proportional to 721,039.12, 1,080,612.60 and 530,608.12

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Solution

The fourth proportional to 721,039.12, 1,080,612.60 and 530,608.12 is: 795,215.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,039.12 : 1,080,612.60 = 530,608.12 : x
  2. Step 2: Convert to fraction form
    721,039.12/1,080,612.60 = 530,608.12/x
  3. Step 3: Cross multiply
    721,039.12x = 1,080,612.60 × 530,608.12
  4. Step 4: Simplify right side
    721,039.12x = 573,381,815,443.00
  5. Step 5: Solve for x
    x = 573,381,815,443.00/721,039.12
  6. Step 6: Final answer
    x = 795,215.96

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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.