Home / 808,257.12-1,115,372.88-445,675.20

Finding the Fourth Proportional to 808,257.12, 1,115,372.88 and 445,675.20

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Solution

The fourth proportional to 808,257.12, 1,115,372.88 and 445,675.20 is: 615,019.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,257.12 : 1,115,372.88 = 445,675.20 : x
  2. Step 2: Convert to fraction form
    808,257.12/1,115,372.88 = 445,675.20/x
  3. Step 3: Cross multiply
    808,257.12x = 1,115,372.88 × 445,675.20
  4. Step 4: Simplify right side
    808,257.12x = 497,094,031,368.58
  5. Step 5: Solve for x
    x = 497,094,031,368.58/808,257.12
  6. Step 6: Final answer
    x = 615,019.68

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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.