Home / 1,326,235.01-1,989,740.70-427,658.67

Finding the Fourth Proportional to 1,326,235.01, 1,989,740.70 and 427,658.67

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Solution

The fourth proportional to 1,326,235.01, 1,989,740.70 and 427,658.67 is: 641,613.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,235.01 : 1,989,740.70 = 427,658.67 : x
  2. Step 2: Convert to fraction form
    1,326,235.01/1,989,740.70 = 427,658.67/x
  3. Step 3: Cross multiply
    1,326,235.01x = 1,989,740.70 × 427,658.67
  4. Step 4: Simplify right side
    1,326,235.01x = 850,929,861,406.87
  5. Step 5: Solve for x
    x = 850,929,861,406.87/1,326,235.01
  6. Step 6: Final answer
    x = 641,613.18

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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.