Home / 808,343.72-1,115,507.56-445,782.68

Finding the Fourth Proportional to 808,343.72, 1,115,507.56 and 445,782.68

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Solution

The fourth proportional to 808,343.72, 1,115,507.56 and 445,782.68 is: 615,176.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,343.72 : 1,115,507.56 = 445,782.68 : x
  2. Step 2: Convert to fraction form
    808,343.72/1,115,507.56 = 445,782.68/x
  3. Step 3: Cross multiply
    808,343.72x = 1,115,507.56 × 445,782.68
  4. Step 4: Simplify right side
    808,343.72x = 497,273,949,657.06
  5. Step 5: Solve for x
    x = 497,273,949,657.06/808,343.72
  6. Step 6: Final answer
    x = 615,176.36

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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.