Home / 764,267.40-1,146,411.90-290,978.64

Finding the Fourth Proportional to 764,267.40, 1,146,411.90 and 290,978.64

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Solution

The fourth proportional to 764,267.40, 1,146,411.90 and 290,978.64 is: 436,472.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,267.40 : 1,146,411.90 = 290,978.64 : x
  2. Step 2: Convert to fraction form
    764,267.40/1,146,411.90 = 290,978.64/x
  3. Step 3: Cross multiply
    764,267.40x = 1,146,411.90 × 290,978.64
  4. Step 4: Simplify right side
    764,267.40x = 333,581,375,541.82
  5. Step 5: Solve for x
    x = 333,581,375,541.82/764,267.40
  6. Step 6: Final answer
    x = 436,472.07

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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.