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Finding the Fourth Proportional to 510,235.60, 764,697.30 and 310,343.80

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Solution

The fourth proportional to 510,235.60, 764,697.30 and 310,343.80 is: 465,116.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,235.60 : 764,697.30 = 310,343.80 : x
  2. Step 2: Convert to fraction form
    510,235.60/764,697.30 = 310,343.80/x
  3. Step 3: Cross multiply
    510,235.60x = 764,697.30 × 310,343.80
  4. Step 4: Simplify right side
    510,235.60x = 237,319,065,931.74
  5. Step 5: Solve for x
    x = 237,319,065,931.74/510,235.60
  6. Step 6: Final answer
    x = 465,116.64

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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.