Home / 1,089,230.10-1,634,063.85-912,957.90

Finding the Fourth Proportional to 1,089,230.10, 1,634,063.85 and 912,957.90

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Solution

The fourth proportional to 1,089,230.10, 1,634,063.85 and 912,957.90 is: 1,369,620.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,089,230.10 : 1,634,063.85 = 912,957.90 : x
  2. Step 2: Convert to fraction form
    1,089,230.10/1,634,063.85 = 912,957.90/x
  3. Step 3: Cross multiply
    1,089,230.10x = 1,634,063.85 × 912,957.90
  4. Step 4: Simplify right side
    1,089,230.10x = 1,491,831,500,961.92
  5. Step 5: Solve for x
    x = 1,491,831,500,961.92/1,089,230.10
  6. Step 6: Final answer
    x = 1,369,620.16

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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.