Home / 440,628.68-660,943.39-120,784.03

Finding the Fourth Proportional to 440,628.68, 660,943.39 and 120,784.03

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Solution

The fourth proportional to 440,628.68, 660,943.39 and 120,784.03 is: 181,176.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,628.68 : 660,943.39 = 120,784.03 : x
  2. Step 2: Convert to fraction form
    440,628.68/660,943.39 = 120,784.03/x
  3. Step 3: Cross multiply
    440,628.68x = 660,943.39 × 120,784.03
  4. Step 4: Simplify right side
    440,628.68x = 79,831,402,941.34
  5. Step 5: Solve for x
    x = 79,831,402,941.34/440,628.68
  6. Step 6: Final answer
    x = 181,176.14

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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.