Home / 775,817.12-1,070,607.24-431,653.79

Finding the Fourth Proportional to 775,817.12, 1,070,607.24 and 431,653.79

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Solution

The fourth proportional to 775,817.12, 1,070,607.24 and 431,653.79 is: 595,670.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,817.12 : 1,070,607.24 = 431,653.79 : x
  2. Step 2: Convert to fraction form
    775,817.12/1,070,607.24 = 431,653.79/x
  3. Step 3: Cross multiply
    775,817.12x = 1,070,607.24 × 431,653.79
  4. Step 4: Simplify right side
    775,817.12x = 462,131,675,423.96
  5. Step 5: Solve for x
    x = 462,131,675,423.96/775,817.12
  6. Step 6: Final answer
    x = 595,670.89

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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.