Home / 1,218,208.51-1,829,109.08-679,517.25

Finding the Fourth Proportional to 1,218,208.51, 1,829,109.08 and 679,517.25

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Solution

The fourth proportional to 1,218,208.51, 1,829,109.08 and 679,517.25 is: 1,020,277.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,208.51 : 1,829,109.08 = 679,517.25 : x
  2. Step 2: Convert to fraction form
    1,218,208.51/1,829,109.08 = 679,517.25/x
  3. Step 3: Cross multiply
    1,218,208.51x = 1,829,109.08 × 679,517.25
  4. Step 4: Simplify right side
    1,218,208.51x = 1,242,911,173,297.72
  5. Step 5: Solve for x
    x = 1,242,911,173,297.72/1,218,208.51
  6. Step 6: Final answer
    x = 1,020,277.86

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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.