Home / 805,364.48-1,111,405.20-442,825.40

Finding the Fourth Proportional to 805,364.48, 1,111,405.20 and 442,825.40

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Solution

The fourth proportional to 805,364.48, 1,111,405.20 and 442,825.40 is: 611,100.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,364.48 : 1,111,405.20 = 442,825.40 : x
  2. Step 2: Convert to fraction form
    805,364.48/1,111,405.20 = 442,825.40/x
  3. Step 3: Cross multiply
    805,364.48x = 1,111,405.20 × 442,825.40
  4. Step 4: Simplify right side
    805,364.48x = 492,158,452,252.08
  5. Step 5: Solve for x
    x = 492,158,452,252.08/805,364.48
  6. Step 6: Final answer
    x = 611,100.27

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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.