Home / 1,112,180.40-1,668,270.60-972,212.40

Finding the Fourth Proportional to 1,112,180.40, 1,668,270.60 and 972,212.40

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Solution

The fourth proportional to 1,112,180.40, 1,668,270.60 and 972,212.40 is: 1,458,318.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,180.40 : 1,668,270.60 = 972,212.40 : x
  2. Step 2: Convert to fraction form
    1,112,180.40/1,668,270.60 = 972,212.40/x
  3. Step 3: Cross multiply
    1,112,180.40x = 1,668,270.60 × 972,212.40
  4. Step 4: Simplify right side
    1,112,180.40x = 1,621,913,363,875.44
  5. Step 5: Solve for x
    x = 1,621,913,363,875.44/1,112,180.40
  6. Step 6: Final answer
    x = 1,458,318.60

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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.