Home / 521,439.21-719,596.31-340,267.05

Finding the Fourth Proportional to 521,439.21, 719,596.31 and 340,267.05

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Solution

The fourth proportional to 521,439.21, 719,596.31 and 340,267.05 is: 469,575.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,439.21 : 719,596.31 = 340,267.05 : x
  2. Step 2: Convert to fraction form
    521,439.21/719,596.31 = 340,267.05/x
  3. Step 3: Cross multiply
    521,439.21x = 719,596.31 × 340,267.05
  4. Step 4: Simplify right side
    521,439.21x = 244,854,911,893.25
  5. Step 5: Solve for x
    x = 244,854,911,893.25/521,439.21
  6. Step 6: Final answer
    x = 469,575.18

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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.