Home / 572,429.90-789,913.66-317,760.98

Finding the Fourth Proportional to 572,429.90, 789,913.66 and 317,760.98

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Solution

The fourth proportional to 572,429.90, 789,913.66 and 317,760.98 is: 438,488.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,429.90 : 789,913.66 = 317,760.98 : x
  2. Step 2: Convert to fraction form
    572,429.90/789,913.66 = 317,760.98/x
  3. Step 3: Cross multiply
    572,429.90x = 789,913.66 × 317,760.98
  4. Step 4: Simplify right side
    572,429.90x = 251,003,738,716.99
  5. Step 5: Solve for x
    x = 251,003,738,716.99/572,429.90
  6. Step 6: Final answer
    x = 438,488.17

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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.