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Finding the Fourth Proportional to 803,833.12, 1,109,297.04 and 464,293.60

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Solution

The fourth proportional to 803,833.12, 1,109,297.04 and 464,293.60 is: 640,729.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,833.12 : 1,109,297.04 = 464,293.60 : x
  2. Step 2: Convert to fraction form
    803,833.12/1,109,297.04 = 464,293.60/x
  3. Step 3: Cross multiply
    803,833.12x = 1,109,297.04 × 464,293.60
  4. Step 4: Simplify right side
    803,833.12x = 515,039,516,170.94
  5. Step 5: Solve for x
    x = 515,039,516,170.94/803,833.12
  6. Step 6: Final answer
    x = 640,729.40

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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.