Home / 1,223,112.93-1,687,918.37-679,299.45

Finding the Fourth Proportional to 1,223,112.93, 1,687,918.37 and 679,299.45

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Solution

The fourth proportional to 1,223,112.93, 1,687,918.37 and 679,299.45 is: 937,445.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,112.93 : 1,687,918.37 = 679,299.45 : x
  2. Step 2: Convert to fraction form
    1,223,112.93/1,687,918.37 = 679,299.45/x
  3. Step 3: Cross multiply
    1,223,112.93x = 1,687,918.37 × 679,299.45
  4. Step 4: Simplify right side
    1,223,112.93x = 1,146,602,010,659.71
  5. Step 5: Solve for x
    x = 1,146,602,010,659.71/1,223,112.93
  6. Step 6: Final answer
    x = 937,445.75

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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.