Home / 775,590.03-1,070,378.90-431,490.79

Finding the Fourth Proportional to 775,590.03, 1,070,378.90 and 431,490.79

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Solution

The fourth proportional to 775,590.03, 1,070,378.90 and 431,490.79 is: 595,493.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,590.03 : 1,070,378.90 = 431,490.79 : x
  2. Step 2: Convert to fraction form
    775,590.03/1,070,378.90 = 431,490.79/x
  3. Step 3: Cross multiply
    775,590.03x = 1,070,378.90 × 431,490.79
  4. Step 4: Simplify right side
    775,590.03x = 461,858,637,160.33
  5. Step 5: Solve for x
    x = 461,858,637,160.33/775,590.03
  6. Step 6: Final answer
    x = 595,493.26

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Double scale
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1.5x scale

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.