Home / 764,784.27-1,146,143.02-291,211.29

Finding the Fourth Proportional to 764,784.27, 1,146,143.02 and 291,211.29

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Solution

The fourth proportional to 764,784.27, 1,146,143.02 and 291,211.29 is: 436,423.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,784.27 : 1,146,143.02 = 291,211.29 : x
  2. Step 2: Convert to fraction form
    764,784.27/1,146,143.02 = 291,211.29/x
  3. Step 3: Cross multiply
    764,784.27x = 1,146,143.02 × 291,211.29
  4. Step 4: Simplify right side
    764,784.27x = 333,769,787,378.70
  5. Step 5: Solve for x
    x = 333,769,787,378.70/764,784.27
  6. Step 6: Final answer
    x = 436,423.45

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Half scale
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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.