Home / 1,319,279.84-1,820,609.68-715,667.84

Finding the Fourth Proportional to 1,319,279.84, 1,820,609.68 and 715,667.84

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Solution

The fourth proportional to 1,319,279.84, 1,820,609.68 and 715,667.84 is: 987,623.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,279.84 : 1,820,609.68 = 715,667.84 : x
  2. Step 2: Convert to fraction form
    1,319,279.84/1,820,609.68 = 715,667.84/x
  3. Step 3: Cross multiply
    1,319,279.84x = 1,820,609.68 × 715,667.84
  4. Step 4: Simplify right side
    1,319,279.84x = 1,302,951,797,168.69
  5. Step 5: Solve for x
    x = 1,302,951,797,168.69/1,319,279.84
  6. Step 6: Final answer
    x = 987,623.52

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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.