Home / 480,231.17-720,320.78-243,567.69

Finding the Fourth Proportional to 480,231.17, 720,320.78 and 243,567.69

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Solution

The fourth proportional to 480,231.17, 720,320.78 and 243,567.69 is: 365,338.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,231.17 : 720,320.78 = 243,567.69 : x
  2. Step 2: Convert to fraction form
    480,231.17/720,320.78 = 243,567.69/x
  3. Step 3: Cross multiply
    480,231.17x = 720,320.78 × 243,567.69
  4. Step 4: Simplify right side
    480,231.17x = 175,446,867,225.76
  5. Step 5: Solve for x
    x = 175,446,867,225.76/480,231.17
  6. Step 6: Final answer
    x = 365,338.36

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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.