Home / 509,132.07-702,579.52-305,295.47

Finding the Fourth Proportional to 509,132.07, 702,579.52 and 305,295.47

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Solution

The fourth proportional to 509,132.07, 702,579.52 and 305,295.47 is: 421,294.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,132.07 : 702,579.52 = 305,295.47 : x
  2. Step 2: Convert to fraction form
    509,132.07/702,579.52 = 305,295.47/x
  3. Step 3: Cross multiply
    509,132.07x = 702,579.52 × 305,295.47
  4. Step 4: Simplify right side
    509,132.07x = 214,494,341,639.50
  5. Step 5: Solve for x
    x = 214,494,341,639.50/509,132.07
  6. Step 6: Final answer
    x = 421,294.11

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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.