Home / 873,337.40-1,309,214.10-312,241.40

Finding the Fourth Proportional to 873,337.40, 1,309,214.10 and 312,241.40

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Solution

The fourth proportional to 873,337.40, 1,309,214.10 and 312,241.40 is: 468,078.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,337.40 : 1,309,214.10 = 312,241.40 : x
  2. Step 2: Convert to fraction form
    873,337.40/1,309,214.10 = 312,241.40/x
  3. Step 3: Cross multiply
    873,337.40x = 1,309,214.10 × 312,241.40
  4. Step 4: Simplify right side
    873,337.40x = 408,790,843,483.74
  5. Step 5: Solve for x
    x = 408,790,843,483.74/873,337.40
  6. Step 6: Final answer
    x = 468,078.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.