Home / 571,821.17-789,107.50-317,165.81

Finding the Fourth Proportional to 571,821.17, 789,107.50 and 317,165.81

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Solution

The fourth proportional to 571,821.17, 789,107.50 and 317,165.81 is: 437,685.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,821.17 : 789,107.50 = 317,165.81 : x
  2. Step 2: Convert to fraction form
    571,821.17/789,107.50 = 317,165.81/x
  3. Step 3: Cross multiply
    571,821.17x = 789,107.50 × 317,165.81
  4. Step 4: Simplify right side
    571,821.17x = 250,277,919,414.58
  5. Step 5: Solve for x
    x = 250,277,919,414.58/571,821.17
  6. Step 6: Final answer
    x = 437,685.65

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1.5x scale

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.