Home / 383,976.93-575,899.75-103,428.57

Finding the Fourth Proportional to 383,976.93, 575,899.75 and 103,428.57

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Solution

The fourth proportional to 383,976.93, 575,899.75 and 103,428.57 is: 155,125.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,976.93 : 575,899.75 = 103,428.57 : x
  2. Step 2: Convert to fraction form
    383,976.93/575,899.75 = 103,428.57/x
  3. Step 3: Cross multiply
    383,976.93x = 575,899.75 × 103,428.57
  4. Step 4: Simplify right side
    383,976.93x = 59,564,487,605.86
  5. Step 5: Solve for x
    x = 59,564,487,605.86/383,976.93
  6. Step 6: Final answer
    x = 155,125.17

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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.