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Finding the Fourth Proportional to 659,700.96, 910,387.44 and 373,215.12

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Solution

The fourth proportional to 659,700.96, 910,387.44 and 373,215.12 is: 515,036.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,700.96 : 910,387.44 = 373,215.12 : x
  2. Step 2: Convert to fraction form
    659,700.96/910,387.44 = 373,215.12/x
  3. Step 3: Cross multiply
    659,700.96x = 910,387.44 × 373,215.12
  4. Step 4: Simplify right side
    659,700.96x = 339,770,357,666.09
  5. Step 5: Solve for x
    x = 339,770,357,666.09/659,700.96
  6. Step 6: Final answer
    x = 515,036.93

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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.