Home / 929,780.72-1,394,034.35-473,488.68

Finding the Fourth Proportional to 929,780.72, 1,394,034.35 and 473,488.68

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Solution

The fourth proportional to 929,780.72, 1,394,034.35 and 473,488.68 is: 709,908.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,780.72 : 1,394,034.35 = 473,488.68 : x
  2. Step 2: Convert to fraction form
    929,780.72/1,394,034.35 = 473,488.68/x
  3. Step 3: Cross multiply
    929,780.72x = 1,394,034.35 × 473,488.68
  4. Step 4: Simplify right side
    929,780.72x = 660,059,481,888.72
  5. Step 5: Solve for x
    x = 660,059,481,888.72/929,780.72
  6. Step 6: Final answer
    x = 709,908.77

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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.