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Finding the Fourth Proportional to 440,855.44, 608,386.56 and 239,655.76

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Solution

The fourth proportional to 440,855.44, 608,386.56 and 239,655.76 is: 330,728.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,855.44 : 608,386.56 = 239,655.76 : x
  2. Step 2: Convert to fraction form
    440,855.44/608,386.56 = 239,655.76/x
  3. Step 3: Cross multiply
    440,855.44x = 608,386.56 × 239,655.76
  4. Step 4: Simplify right side
    440,855.44x = 145,803,343,410.59
  5. Step 5: Solve for x
    x = 145,803,343,410.59/440,855.44
  6. Step 6: Final answer
    x = 330,728.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.