Home / 540,116.60-809,786.10-303,531.80

Finding the Fourth Proportional to 540,116.60, 809,786.10 and 303,531.80

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Solution

The fourth proportional to 540,116.60, 809,786.10 and 303,531.80 is: 455,079.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,116.60 : 809,786.10 = 303,531.80 : x
  2. Step 2: Convert to fraction form
    540,116.60/809,786.10 = 303,531.80/x
  3. Step 3: Cross multiply
    540,116.60x = 809,786.10 × 303,531.80
  4. Step 4: Simplify right side
    540,116.60x = 245,795,832,547.98
  5. Step 5: Solve for x
    x = 245,795,832,547.98/540,116.60
  6. Step 6: Final answer
    x = 455,079.20

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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.