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Finding the Fourth Proportional to 526,798.86, 726,936.53 and 309,051.42

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Solution

The fourth proportional to 526,798.86, 726,936.53 and 309,051.42 is: 426,464.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,798.86 : 726,936.53 = 309,051.42 : x
  2. Step 2: Convert to fraction form
    526,798.86/726,936.53 = 309,051.42/x
  3. Step 3: Cross multiply
    526,798.86x = 726,936.53 × 309,051.42
  4. Step 4: Simplify right side
    526,798.86x = 224,660,765,301.12
  5. Step 5: Solve for x
    x = 224,660,765,301.12/526,798.86
  6. Step 6: Final answer
    x = 426,464.03

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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.