Home / 1,178,708.71-1,627,016.26-765,810.40

Finding the Fourth Proportional to 1,178,708.71, 1,627,016.26 and 765,810.40

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Solution

The fourth proportional to 1,178,708.71, 1,627,016.26 and 765,810.40 is: 1,057,077.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,708.71 : 1,627,016.26 = 765,810.40 : x
  2. Step 2: Convert to fraction form
    1,178,708.71/1,627,016.26 = 765,810.40/x
  3. Step 3: Cross multiply
    1,178,708.71x = 1,627,016.26 × 765,810.40
  4. Step 4: Simplify right side
    1,178,708.71x = 1,245,985,972,877.10
  5. Step 5: Solve for x
    x = 1,245,985,972,877.10/1,178,708.71
  6. Step 6: Final answer
    x = 1,057,077.09

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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.