Home / 1,299,017.40-1,793,196.78-789,883.32

Finding the Fourth Proportional to 1,299,017.40, 1,793,196.78 and 789,883.32

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Solution

The fourth proportional to 1,299,017.40, 1,793,196.78 and 789,883.32 is: 1,090,375.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,017.40 : 1,793,196.78 = 789,883.32 : x
  2. Step 2: Convert to fraction form
    1,299,017.40/1,793,196.78 = 789,883.32/x
  3. Step 3: Cross multiply
    1,299,017.40x = 1,793,196.78 × 789,883.32
  4. Step 4: Simplify right side
    1,299,017.40x = 1,416,416,225,999.71
  5. Step 5: Solve for x
    x = 1,416,416,225,999.71/1,299,017.40
  6. Step 6: Final answer
    x = 1,090,375.10

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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.