Home / 1,392,188.40-2,088,282.60-972,284.40

Finding the Fourth Proportional to 1,392,188.40, 2,088,282.60 and 972,284.40

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Solution

The fourth proportional to 1,392,188.40, 2,088,282.60 and 972,284.40 is: 1,458,426.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,188.40 : 2,088,282.60 = 972,284.40 : x
  2. Step 2: Convert to fraction form
    1,392,188.40/2,088,282.60 = 972,284.40/x
  3. Step 3: Cross multiply
    1,392,188.40x = 2,088,282.60 × 972,284.40
  4. Step 4: Simplify right side
    1,392,188.40x = 2,030,404,594,771.44
  5. Step 5: Solve for x
    x = 2,030,404,594,771.44/1,392,188.40
  6. Step 6: Final answer
    x = 1,458,426.60

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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.