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Finding the Fourth Proportional to 510,109.60, 764,508.30 and 310,217.80

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Solution

The fourth proportional to 510,109.60, 764,508.30 and 310,217.80 is: 464,927.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,109.60 : 764,508.30 = 310,217.80 : x
  2. Step 2: Convert to fraction form
    510,109.60/764,508.30 = 310,217.80/x
  3. Step 3: Cross multiply
    510,109.60x = 764,508.30 × 310,217.80
  4. Step 4: Simplify right side
    510,109.60x = 237,164,082,907.74
  5. Step 5: Solve for x
    x = 237,164,082,907.74/510,109.60
  6. Step 6: Final answer
    x = 464,927.70

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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.