Home / 808,337.72-1,115,499.30-445,776.68

Finding the Fourth Proportional to 808,337.72, 1,115,499.30 and 445,776.68

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Solution

The fourth proportional to 808,337.72, 1,115,499.30 and 445,776.68 is: 615,168.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,337.72 : 1,115,499.30 = 445,776.68 : x
  2. Step 2: Convert to fraction form
    808,337.72/1,115,499.30 = 445,776.68/x
  3. Step 3: Cross multiply
    808,337.72x = 1,115,499.30 × 445,776.68
  4. Step 4: Simplify right side
    808,337.72x = 497,263,574,496.32
  5. Step 5: Solve for x
    x = 497,263,574,496.32/808,337.72
  6. Step 6: Final answer
    x = 615,168.09

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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.