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Finding the Fourth Proportional to 840,843.80, 1,160,364.14 and 458,870.58

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Solution

The fourth proportional to 840,843.80, 1,160,364.14 and 458,870.58 is: 633,241.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,843.80 : 1,160,364.14 = 458,870.58 : x
  2. Step 2: Convert to fraction form
    840,843.80/1,160,364.14 = 458,870.58/x
  3. Step 3: Cross multiply
    840,843.80x = 1,160,364.14 × 458,870.58
  4. Step 4: Simplify right side
    840,843.80x = 532,456,963,638.65
  5. Step 5: Solve for x
    x = 532,456,963,638.65/840,843.80
  6. Step 6: Final answer
    x = 633,241.24

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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.