Home / 425,156.40-586,757.28-317,539.68

Finding the Fourth Proportional to 425,156.40, 586,757.28 and 317,539.68

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Solution

The fourth proportional to 425,156.40, 586,757.28 and 317,539.68 is: 438,235.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,156.40 : 586,757.28 = 317,539.68 : x
  2. Step 2: Convert to fraction form
    425,156.40/586,757.28 = 317,539.68/x
  3. Step 3: Cross multiply
    425,156.40x = 586,757.28 × 317,539.68
  4. Step 4: Simplify right side
    425,156.40x = 186,318,718,928.87
  5. Step 5: Solve for x
    x = 186,318,718,928.87/425,156.40
  6. Step 6: Final answer
    x = 438,235.71

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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.