Home / 1,316,667.38-1,975,001.90-319,395.38

Finding the Fourth Proportional to 1,316,667.38, 1,975,001.90 and 319,395.38

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Solution

The fourth proportional to 1,316,667.38, 1,975,001.90 and 319,395.38 is: 479,093.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,667.38 : 1,975,001.90 = 319,395.38 : x
  2. Step 2: Convert to fraction form
    1,316,667.38/1,975,001.90 = 319,395.38/x
  3. Step 3: Cross multiply
    1,316,667.38x = 1,975,001.90 × 319,395.38
  4. Step 4: Simplify right side
    1,316,667.38x = 630,806,470,879.24
  5. Step 5: Solve for x
    x = 630,806,470,879.24/1,316,667.38
  6. Step 6: Final answer
    x = 479,093.26

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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.