Home / 779,857.52-1,169,786.21-425,169.80

Finding the Fourth Proportional to 779,857.52, 1,169,786.21 and 425,169.80

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Solution

The fourth proportional to 779,857.52, 1,169,786.21 and 425,169.80 is: 637,754.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,857.52 : 1,169,786.21 = 425,169.80 : x
  2. Step 2: Convert to fraction form
    779,857.52/1,169,786.21 = 425,169.80/x
  3. Step 3: Cross multiply
    779,857.52x = 1,169,786.21 × 425,169.80
  4. Step 4: Simplify right side
    779,857.52x = 497,357,768,948.46
  5. Step 5: Solve for x
    x = 497,357,768,948.46/779,857.52
  6. Step 6: Final answer
    x = 637,754.66

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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.