Home / 805,429.57-1,111,464.35-442,850.89

Finding the Fourth Proportional to 805,429.57, 1,111,464.35 and 442,850.89

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Solution

The fourth proportional to 805,429.57, 1,111,464.35 and 442,850.89 is: 611,118.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,429.57 : 1,111,464.35 = 442,850.89 : x
  2. Step 2: Convert to fraction form
    805,429.57/1,111,464.35 = 442,850.89/x
  3. Step 3: Cross multiply
    805,429.57x = 1,111,464.35 × 442,850.89
  4. Step 4: Simplify right side
    805,429.57x = 492,212,968,829.20
  5. Step 5: Solve for x
    x = 492,212,968,829.20/805,429.57
  6. Step 6: Final answer
    x = 611,118.58

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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.