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Finding the Fourth Proportional to 509,480.50, 702,342.08 and 356,042.32

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Solution

The fourth proportional to 509,480.50, 702,342.08 and 356,042.32 is: 490,820.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,480.50 : 702,342.08 = 356,042.32 : x
  2. Step 2: Convert to fraction form
    509,480.50/702,342.08 = 356,042.32/x
  3. Step 3: Cross multiply
    509,480.50x = 702,342.08 × 356,042.32
  4. Step 4: Simplify right side
    509,480.50x = 250,063,503,596.83
  5. Step 5: Solve for x
    x = 250,063,503,596.83/509,480.50
  6. Step 6: Final answer
    x = 490,820.56

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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.