Home / 854,015.40-1,281,031.61-348,441.35

Finding the Fourth Proportional to 854,015.40, 1,281,031.61 and 348,441.35

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Solution

The fourth proportional to 854,015.40, 1,281,031.61 and 348,441.35 is: 522,665.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,015.40 : 1,281,031.61 = 348,441.35 : x
  2. Step 2: Convert to fraction form
    854,015.40/1,281,031.61 = 348,441.35/x
  3. Step 3: Cross multiply
    854,015.40x = 1,281,031.61 × 348,441.35
  4. Step 4: Simplify right side
    854,015.40x = 446,364,375,433.71
  5. Step 5: Solve for x
    x = 446,364,375,433.71/854,015.40
  6. Step 6: Final answer
    x = 522,665.49

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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.