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Finding the Fourth Proportional to 805,303, 1,111,289.82 and 442,724.22

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Solution

The fourth proportional to 805,303, 1,111,289.82 and 442,724.22 is: 610,943.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,303 : 1,111,289.82 = 442,724.22 : x
  2. Step 2: Convert to fraction form
    805,303/1,111,289.82 = 442,724.22/x
  3. Step 3: Cross multiply
    805,303x = 1,111,289.82 × 442,724.22
  4. Step 4: Simplify right side
    805,303x = 491,994,918,753.44
  5. Step 5: Solve for x
    x = 491,994,918,753.44/805,303
  6. Step 6: Final answer
    x = 610,943.85

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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.