Home / 571,836.90-789,135.70-317,188.08

Finding the Fourth Proportional to 571,836.90, 789,135.70 and 317,188.08

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Solution

The fourth proportional to 571,836.90, 789,135.70 and 317,188.08 is: 437,719.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,836.90 : 789,135.70 = 317,188.08 : x
  2. Step 2: Convert to fraction form
    571,836.90/789,135.70 = 317,188.08/x
  3. Step 3: Cross multiply
    571,836.90x = 789,135.70 × 317,188.08
  4. Step 4: Simplify right side
    571,836.90x = 250,304,437,542.46
  5. Step 5: Solve for x
    x = 250,304,437,542.46/571,836.90
  6. Step 6: Final answer
    x = 437,719.98

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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.