Home / 3,139,590.40-4,709,731.20-1,145,478.40

Finding the Fourth Proportional to 3,139,590.40, 4,709,731.20 and 1,145,478.40

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Solution

The fourth proportional to 3,139,590.40, 4,709,731.20 and 1,145,478.40 is: 1,718,343.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,139,590.40 : 4,709,731.20 = 1,145,478.40 : x
  2. Step 2: Convert to fraction form
    3,139,590.40/4,709,731.20 = 1,145,478.40/x
  3. Step 3: Cross multiply
    3,139,590.40x = 4,709,731.20 × 1,145,478.40
  4. Step 4: Simplify right side
    3,139,590.40x = 5,394,895,359,406.08
  5. Step 5: Solve for x
    x = 5,394,895,359,406.08/3,139,590.40
  6. Step 6: Final answer
    x = 1,718,343.69

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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.