Home / 764,207.60-1,146,311.40-409,913.60

Finding the Fourth Proportional to 764,207.60, 1,146,311.40 and 409,913.60

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Solution

The fourth proportional to 764,207.60, 1,146,311.40 and 409,913.60 is: 614,870.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,207.60 : 1,146,311.40 = 409,913.60 : x
  2. Step 2: Convert to fraction form
    764,207.60/1,146,311.40 = 409,913.60/x
  3. Step 3: Cross multiply
    764,207.60x = 1,146,311.40 × 409,913.60
  4. Step 4: Simplify right side
    764,207.60x = 469,888,632,695.04
  5. Step 5: Solve for x
    x = 469,888,632,695.04/764,207.60
  6. Step 6: Final answer
    x = 614,870.40

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Double scale
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Similar ratio
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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.