Home / 1,089,231.60-1,634,066.10-912,959.40

Finding the Fourth Proportional to 1,089,231.60, 1,634,066.10 and 912,959.40

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Solution

The fourth proportional to 1,089,231.60, 1,634,066.10 and 912,959.40 is: 1,369,622.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,089,231.60 : 1,634,066.10 = 912,959.40 : x
  2. Step 2: Convert to fraction form
    1,089,231.60/1,634,066.10 = 912,959.40/x
  3. Step 3: Cross multiply
    1,089,231.60x = 1,634,066.10 × 912,959.40
  4. Step 4: Simplify right side
    1,089,231.60x = 1,491,836,006,216.34
  5. Step 5: Solve for x
    x = 1,491,836,006,216.34/1,089,231.60
  6. Step 6: Final answer
    x = 1,369,622.41

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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.