Home / 509,386.20-702,911.80-294,540.18

Finding the Fourth Proportional to 509,386.20, 702,911.80 and 294,540.18

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Solution

The fourth proportional to 509,386.20, 702,911.80 and 294,540.18 is: 406,441.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,386.20 : 702,911.80 = 294,540.18 : x
  2. Step 2: Convert to fraction form
    509,386.20/702,911.80 = 294,540.18/x
  3. Step 3: Cross multiply
    509,386.20x = 702,911.80 × 294,540.18
  4. Step 4: Simplify right side
    509,386.20x = 207,035,768,096.12
  5. Step 5: Solve for x
    x = 207,035,768,096.12/509,386.20
  6. Step 6: Final answer
    x = 406,441.65

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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.