Home / 764,415.91-1,144,128.77-561,958.40

Finding the Fourth Proportional to 764,415.91, 1,144,128.77 and 561,958.40

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Solution

The fourth proportional to 764,415.91, 1,144,128.77 and 561,958.40 is: 841,103.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,415.91 : 1,144,128.77 = 561,958.40 : x
  2. Step 2: Convert to fraction form
    764,415.91/1,144,128.77 = 561,958.40/x
  3. Step 3: Cross multiply
    764,415.91x = 1,144,128.77 × 561,958.40
  4. Step 4: Simplify right side
    764,415.91x = 642,952,772,983.17
  5. Step 5: Solve for x
    x = 642,952,772,983.17/764,415.91
  6. Step 6: Final answer
    x = 841,103.34

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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.