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Finding the Fourth Proportional to 1,343,797.32, 1,853,787.04 and 859,974.60

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Solution

The fourth proportional to 1,343,797.32, 1,853,787.04 and 859,974.60 is: 1,186,346.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,343,797.32 : 1,853,787.04 = 859,974.60 : x
  2. Step 2: Convert to fraction form
    1,343,797.32/1,853,787.04 = 859,974.60/x
  3. Step 3: Cross multiply
    1,343,797.32x = 1,853,787.04 × 859,974.60
  4. Step 4: Simplify right side
    1,343,797.32x = 1,594,209,768,209.18
  5. Step 5: Solve for x
    x = 1,594,209,768,209.18/1,343,797.32
  6. Step 6: Final answer
    x = 1,186,346.89

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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.