Home / 1,685,743-2,528,617.07-688,471

Finding the Fourth Proportional to 1,685,743, 2,528,617.07 and 688,471

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Solution

The fourth proportional to 1,685,743, 2,528,617.07 and 688,471 is: 1,032,707.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,685,743 : 2,528,617.07 = 688,471 : x
  2. Step 2: Convert to fraction form
    1,685,743/2,528,617.07 = 688,471/x
  3. Step 3: Cross multiply
    1,685,743x = 2,528,617.07 × 688,471
  4. Step 4: Simplify right side
    1,685,743x = 1,740,879,522,799.97
  5. Step 5: Solve for x
    x = 1,740,879,522,799.97/1,685,743
  6. Step 6: Final answer
    x = 1,032,707.55

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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.