Home / 808,212.93-1,115,341.61-445,649.64

Finding the Fourth Proportional to 808,212.93, 1,115,341.61 and 445,649.64

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Solution

The fourth proportional to 808,212.93, 1,115,341.61 and 445,649.64 is: 615,000.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,212.93 : 1,115,341.61 = 445,649.64 : x
  2. Step 2: Convert to fraction form
    808,212.93/1,115,341.61 = 445,649.64/x
  3. Step 3: Cross multiply
    808,212.93x = 1,115,341.61 × 445,649.64
  4. Step 4: Simplify right side
    808,212.93x = 497,051,586,973.52
  5. Step 5: Solve for x
    x = 497,051,586,973.52/808,212.93
  6. Step 6: Final answer
    x = 615,000.79

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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.