Home / 805,311.52-1,111,332.56-442,741.55

Finding the Fourth Proportional to 805,311.52, 1,111,332.56 and 442,741.55

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Solution

The fourth proportional to 805,311.52, 1,111,332.56 and 442,741.55 is: 610,984.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,311.52 : 1,111,332.56 = 442,741.55 : x
  2. Step 2: Convert to fraction form
    805,311.52/1,111,332.56 = 442,741.55/x
  3. Step 3: Cross multiply
    805,311.52x = 1,111,332.56 × 442,741.55
  4. Step 4: Simplify right side
    805,311.52x = 492,033,092,409.50
  5. Step 5: Solve for x
    x = 492,033,092,409.50/805,311.52
  6. Step 6: Final answer
    x = 610,984.79

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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.