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Finding the Fourth Proportional to 508,630.60, 763,140.30 and 500,660.20

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Solution

The fourth proportional to 508,630.60, 763,140.30 and 500,660.20 is: 751,181.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,630.60 : 763,140.30 = 500,660.20 : x
  2. Step 2: Convert to fraction form
    508,630.60/763,140.30 = 500,660.20/x
  3. Step 3: Cross multiply
    508,630.60x = 763,140.30 × 500,660.20
  4. Step 4: Simplify right side
    508,630.60x = 382,073,975,226.06
  5. Step 5: Solve for x
    x = 382,073,975,226.06/508,630.60
  6. Step 6: Final answer
    x = 751,181.65

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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.