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Finding the Fourth Proportional to 508,714.58, 702,034.90 and 279,293.16

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Solution

The fourth proportional to 508,714.58, 702,034.90 and 279,293.16 is: 385,429.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,714.58 : 702,034.90 = 279,293.16 : x
  2. Step 2: Convert to fraction form
    508,714.58/702,034.90 = 279,293.16/x
  3. Step 3: Cross multiply
    508,714.58x = 702,034.90 × 279,293.16
  4. Step 4: Simplify right side
    508,714.58x = 196,073,545,651.28
  5. Step 5: Solve for x
    x = 196,073,545,651.28/508,714.58
  6. Step 6: Final answer
    x = 385,429.38

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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.