Home / 808,065.72-1,115,126.64-445,488.48

Finding the Fourth Proportional to 808,065.72, 1,115,126.64 and 445,488.48

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Solution

The fourth proportional to 808,065.72, 1,115,126.64 and 445,488.48 is: 614,771.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,065.72 : 1,115,126.64 = 445,488.48 : x
  2. Step 2: Convert to fraction form
    808,065.72/1,115,126.64 = 445,488.48/x
  3. Step 3: Cross multiply
    808,065.72x = 1,115,126.64 × 445,488.48
  4. Step 4: Simplify right side
    808,065.72x = 496,776,071,861.11
  5. Step 5: Solve for x
    x = 496,776,071,861.11/808,065.72
  6. Step 6: Final answer
    x = 614,771.87

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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.