Home / 775,817.57-1,070,502.08-431,644.65

Finding the Fourth Proportional to 775,817.57, 1,070,502.08 and 431,644.65

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Solution

The fourth proportional to 775,817.57, 1,070,502.08 and 431,644.65 is: 595,599.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,817.57 : 1,070,502.08 = 431,644.65 : x
  2. Step 2: Convert to fraction form
    775,817.57/1,070,502.08 = 431,644.65/x
  3. Step 3: Cross multiply
    775,817.57x = 1,070,502.08 × 431,644.65
  4. Step 4: Simplify right side
    775,817.57x = 462,076,495,645.87
  5. Step 5: Solve for x
    x = 462,076,495,645.87/775,817.57
  6. Step 6: Final answer
    x = 595,599.43

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Double scale
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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.