Home / 805,363.48-1,111,403.82-442,824.40

Finding the Fourth Proportional to 805,363.48, 1,111,403.82 and 442,824.40

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Solution

The fourth proportional to 805,363.48, 1,111,403.82 and 442,824.40 is: 611,098.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,363.48 : 1,111,403.82 = 442,824.40 : x
  2. Step 2: Convert to fraction form
    805,363.48/1,111,403.82 = 442,824.40/x
  3. Step 3: Cross multiply
    805,363.48x = 1,111,403.82 × 442,824.40
  4. Step 4: Simplify right side
    805,363.48x = 492,156,729,749.21
  5. Step 5: Solve for x
    x = 492,156,729,749.21/805,363.48
  6. Step 6: Final answer
    x = 611,098.89

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1.5x scale

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.