Home / 509,385.20-702,910.42-294,539.18

Finding the Fourth Proportional to 509,385.20, 702,910.42 and 294,539.18

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Solution

The fourth proportional to 509,385.20, 702,910.42 and 294,539.18 is: 406,440.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,385.20 : 702,910.42 = 294,539.18 : x
  2. Step 2: Convert to fraction form
    509,385.20/702,910.42 = 294,539.18/x
  3. Step 3: Cross multiply
    509,385.20x = 702,910.42 × 294,539.18
  4. Step 4: Simplify right side
    509,385.20x = 207,034,658,720.26
  5. Step 5: Solve for x
    x = 207,034,658,720.26/509,385.20
  6. Step 6: Final answer
    x = 406,440.27

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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.