Home / 764,685.54-1,146,357.63-291,055.86

Finding the Fourth Proportional to 764,685.54, 1,146,357.63 and 291,055.86

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Solution

The fourth proportional to 764,685.54, 1,146,357.63 and 291,055.86 is: 436,328.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,685.54 : 1,146,357.63 = 291,055.86 : x
  2. Step 2: Convert to fraction form
    764,685.54/1,146,357.63 = 291,055.86/x
  3. Step 3: Cross multiply
    764,685.54x = 1,146,357.63 × 291,055.86
  4. Step 4: Simplify right side
    764,685.54x = 333,654,105,867.21
  5. Step 5: Solve for x
    x = 333,654,105,867.21/764,685.54
  6. Step 6: Final answer
    x = 436,328.51

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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.