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Finding the Fourth Proportional to 510,165.20, 764,326.20 and 436,437.20

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Solution

The fourth proportional to 510,165.20, 764,326.20 and 436,437.20 is: 653,867.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,165.20 : 764,326.20 = 436,437.20 : x
  2. Step 2: Convert to fraction form
    510,165.20/764,326.20 = 436,437.20/x
  3. Step 3: Cross multiply
    510,165.20x = 764,326.20 × 436,437.20
  4. Step 4: Simplify right side
    510,165.20x = 333,580,386,614.64
  5. Step 5: Solve for x
    x = 333,580,386,614.64/510,165.20
  6. Step 6: Final answer
    x = 653,867.39

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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.