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Finding the Fourth Proportional to 510,210.60, 764,659.80 and 310,318.80

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Solution

The fourth proportional to 510,210.60, 764,659.80 and 310,318.80 is: 465,079.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,210.60 : 764,659.80 = 310,318.80 : x
  2. Step 2: Convert to fraction form
    510,210.60/764,659.80 = 310,318.80/x
  3. Step 3: Cross multiply
    510,210.60x = 764,659.80 × 310,318.80
  4. Step 4: Simplify right side
    510,210.60x = 237,288,311,544.24
  5. Step 5: Solve for x
    x = 237,288,311,544.24/510,210.60
  6. Step 6: Final answer
    x = 465,079.15

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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.