Home / 1,638,366.42-2,458,033.38-840,207

Finding the Fourth Proportional to 1,638,366.42, 2,458,033.38 and 840,207

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Solution

The fourth proportional to 1,638,366.42, 2,458,033.38 and 840,207 is: 1,260,558.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638,366.42 : 2,458,033.38 = 840,207 : x
  2. Step 2: Convert to fraction form
    1,638,366.42/2,458,033.38 = 840,207/x
  3. Step 3: Cross multiply
    1,638,366.42x = 2,458,033.38 × 840,207
  4. Step 4: Simplify right side
    1,638,366.42x = 2,065,256,852,109.66
  5. Step 5: Solve for x
    x = 2,065,256,852,109.66/1,638,366.42
  6. Step 6: Final answer
    x = 1,260,558.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.