Home / 1,778,578.65-2,667,859.05-430,741.23

Finding the Fourth Proportional to 1,778,578.65, 2,667,859.05 and 430,741.23

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Solution

The fourth proportional to 1,778,578.65, 2,667,859.05 and 430,741.23 is: 646,109.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,778,578.65 : 2,667,859.05 = 430,741.23 : x
  2. Step 2: Convert to fraction form
    1,778,578.65/2,667,859.05 = 430,741.23/x
  3. Step 3: Cross multiply
    1,778,578.65x = 2,667,859.05 × 430,741.23
  4. Step 4: Simplify right side
    1,778,578.65x = 1,149,156,888,663.63
  5. Step 5: Solve for x
    x = 1,149,156,888,663.63/1,778,578.65
  6. Step 6: Final answer
    x = 646,109.68

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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.