Home / 805,330.44-1,111,356.72-442,760.47

Finding the Fourth Proportional to 805,330.44, 1,111,356.72 and 442,760.47

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Solution

The fourth proportional to 805,330.44, 1,111,356.72 and 442,760.47 is: 611,009.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,330.44 : 1,111,356.72 = 442,760.47 : x
  2. Step 2: Convert to fraction form
    805,330.44/1,111,356.72 = 442,760.47/x
  3. Step 3: Cross multiply
    805,330.44x = 1,111,356.72 × 442,760.47
  4. Step 4: Simplify right side
    805,330.44x = 492,064,823,684.86
  5. Step 5: Solve for x
    x = 492,064,823,684.86/805,330.44
  6. Step 6: Final answer
    x = 611,009.84

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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.