Home / 775,590.65-1,070,379.76-431,491.41

Finding the Fourth Proportional to 775,590.65, 1,070,379.76 and 431,491.41

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Solution

The fourth proportional to 775,590.65, 1,070,379.76 and 431,491.41 is: 595,494.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,590.65 : 1,070,379.76 = 431,491.41 : x
  2. Step 2: Convert to fraction form
    775,590.65/1,070,379.76 = 431,491.41/x
  3. Step 3: Cross multiply
    775,590.65x = 1,070,379.76 × 431,491.41
  4. Step 4: Simplify right side
    775,590.65x = 461,859,671,877.86
  5. Step 5: Solve for x
    x = 461,859,671,877.86/775,590.65
  6. Step 6: Final answer
    x = 595,494.12

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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.