Home / 1,392,893.60-2,089,602.64-992,541.20

Finding the Fourth Proportional to 1,392,893.60, 2,089,602.64 and 992,541.20

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Solution

The fourth proportional to 1,392,893.60, 2,089,602.64 and 992,541.20 is: 1,488,998.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,893.60 : 2,089,602.64 = 992,541.20 : x
  2. Step 2: Convert to fraction form
    1,392,893.60/2,089,602.64 = 992,541.20/x
  3. Step 3: Cross multiply
    1,392,893.60x = 2,089,602.64 × 992,541.20
  4. Step 4: Simplify right side
    1,392,893.60x = 2,074,016,711,828.77
  5. Step 5: Solve for x
    x = 2,074,016,711,828.77/1,392,893.60
  6. Step 6: Final answer
    x = 1,488,998.67

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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.