Home / 1,316,671.38-1,975,007.90-319,399.38

Finding the Fourth Proportional to 1,316,671.38, 1,975,007.90 and 319,399.38

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Solution

The fourth proportional to 1,316,671.38, 1,975,007.90 and 319,399.38 is: 479,099.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,671.38 : 1,975,007.90 = 319,399.38 : x
  2. Step 2: Convert to fraction form
    1,316,671.38/1,975,007.90 = 319,399.38/x
  3. Step 3: Cross multiply
    1,316,671.38x = 1,975,007.90 × 319,399.38
  4. Step 4: Simplify right side
    1,316,671.38x = 630,816,298,755.10
  5. Step 5: Solve for x
    x = 630,816,298,755.10/1,316,671.38
  6. Step 6: Final answer
    x = 479,099.27

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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.