Home / 764,054.72-1,146,311.04-308,411.36

Finding the Fourth Proportional to 764,054.72, 1,146,311.04 and 308,411.36

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Solution

The fourth proportional to 764,054.72, 1,146,311.04 and 308,411.36 is: 462,709.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,054.72 : 1,146,311.04 = 308,411.36 : x
  2. Step 2: Convert to fraction form
    764,054.72/1,146,311.04 = 308,411.36/x
  3. Step 3: Cross multiply
    764,054.72x = 1,146,311.04 × 308,411.36
  4. Step 4: Simplify right side
    764,054.72x = 353,535,346,829.41
  5. Step 5: Solve for x
    x = 353,535,346,829.41/764,054.72
  6. Step 6: Final answer
    x = 462,709.46

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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.