Home / 842,417.34-1,262,867.37-309,824.46

Finding the Fourth Proportional to 842,417.34, 1,262,867.37 and 309,824.46

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Solution

The fourth proportional to 842,417.34, 1,262,867.37 and 309,824.46 is: 464,457.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,417.34 : 1,262,867.37 = 309,824.46 : x
  2. Step 2: Convert to fraction form
    842,417.34/1,262,867.37 = 309,824.46/x
  3. Step 3: Cross multiply
    842,417.34x = 1,262,867.37 × 309,824.46
  4. Step 4: Simplify right side
    842,417.34x = 391,267,200,961.87
  5. Step 5: Solve for x
    x = 391,267,200,961.87/842,417.34
  6. Step 6: Final answer
    x = 464,457.68

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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.