Home / 694,667.80-1,042,001.70-339,909.40

Finding the Fourth Proportional to 694,667.80, 1,042,001.70 and 339,909.40

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Solution

The fourth proportional to 694,667.80, 1,042,001.70 and 339,909.40 is: 509,864.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,667.80 : 1,042,001.70 = 339,909.40 : x
  2. Step 2: Convert to fraction form
    694,667.80/1,042,001.70 = 339,909.40/x
  3. Step 3: Cross multiply
    694,667.80x = 1,042,001.70 × 339,909.40
  4. Step 4: Simplify right side
    694,667.80x = 354,186,172,645.98
  5. Step 5: Solve for x
    x = 354,186,172,645.98/694,667.80
  6. Step 6: Final answer
    x = 509,864.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.