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Finding the Fourth Proportional to 510,228.60, 764,686.80 and 310,336.80

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Solution

The fourth proportional to 510,228.60, 764,686.80 and 310,336.80 is: 465,106.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,228.60 : 764,686.80 = 310,336.80 : x
  2. Step 2: Convert to fraction form
    510,228.60/764,686.80 = 310,336.80/x
  3. Step 3: Cross multiply
    510,228.60x = 764,686.80 × 310,336.80
  4. Step 4: Simplify right side
    510,228.60x = 237,310,454,514.24
  5. Step 5: Solve for x
    x = 237,310,454,514.24/510,228.60
  6. Step 6: Final answer
    x = 465,106.14

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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.