Home / 764,000.16-1,146,000.24-290,576.16

Finding the Fourth Proportional to 764,000.16, 1,146,000.24 and 290,576.16

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Solution

The fourth proportional to 764,000.16, 1,146,000.24 and 290,576.16 is: 435,864.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,000.16 : 1,146,000.24 = 290,576.16 : x
  2. Step 2: Convert to fraction form
    764,000.16/1,146,000.24 = 290,576.16/x
  3. Step 3: Cross multiply
    764,000.16x = 1,146,000.24 × 290,576.16
  4. Step 4: Simplify right side
    764,000.16x = 333,000,349,098.28
  5. Step 5: Solve for x
    x = 333,000,349,098.28/764,000.16
  6. Step 6: Final answer
    x = 435,864.24

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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.