Home / 805,445.40-1,208,313.78-331,867.32

Finding the Fourth Proportional to 805,445.40, 1,208,313.78 and 331,867.32

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Solution

The fourth proportional to 805,445.40, 1,208,313.78 and 331,867.32 is: 497,861.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,445.40 : 1,208,313.78 = 331,867.32 : x
  2. Step 2: Convert to fraction form
    805,445.40/1,208,313.78 = 331,867.32/x
  3. Step 3: Cross multiply
    805,445.40x = 1,208,313.78 × 331,867.32
  4. Step 4: Simplify right side
    805,445.40x = 400,999,855,887.67
  5. Step 5: Solve for x
    x = 400,999,855,887.67/805,445.40
  6. Step 6: Final answer
    x = 497,861.00

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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.