Home / 764,782.60-1,146,140.56-291,209.64

Finding the Fourth Proportional to 764,782.60, 1,146,140.56 and 291,209.64

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Solution

The fourth proportional to 764,782.60, 1,146,140.56 and 291,209.64 is: 436,420.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,782.60 : 1,146,140.56 = 291,209.64 : x
  2. Step 2: Convert to fraction form
    764,782.60/1,146,140.56 = 291,209.64/x
  3. Step 3: Cross multiply
    764,782.60x = 1,146,140.56 × 291,209.64
  4. Step 4: Simplify right side
    764,782.60x = 333,767,179,867.00
  5. Step 5: Solve for x
    x = 333,767,179,867.00/764,782.60
  6. Step 6: Final answer
    x = 436,420.99

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Double scale
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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.