Home / 3,178,613.34-4,386,541.23-1,728,318.57

Finding the Fourth Proportional to 3,178,613.34, 4,386,541.23 and 1,728,318.57

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Solution

The fourth proportional to 3,178,613.34, 4,386,541.23 and 1,728,318.57 is: 2,385,109.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178,613.34 : 4,386,541.23 = 1,728,318.57 : x
  2. Step 2: Convert to fraction form
    3,178,613.34/4,386,541.23 = 1,728,318.57/x
  3. Step 3: Cross multiply
    3,178,613.34x = 4,386,541.23 × 1,728,318.57
  4. Step 4: Simplify right side
    3,178,613.34x = 7,581,340,665,879.64
  5. Step 5: Solve for x
    x = 7,581,340,665,879.64/3,178,613.34
  6. Step 6: Final answer
    x = 2,385,109.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.