Home / 1,385,163.90-2,077,810.65-438,608.70

Finding the Fourth Proportional to 1,385,163.90, 2,077,810.65 and 438,608.70

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Solution

The fourth proportional to 1,385,163.90, 2,077,810.65 and 438,608.70 is: 657,933.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,163.90 : 2,077,810.65 = 438,608.70 : x
  2. Step 2: Convert to fraction form
    1,385,163.90/2,077,810.65 = 438,608.70/x
  3. Step 3: Cross multiply
    1,385,163.90x = 2,077,810.65 × 438,608.70
  4. Step 4: Simplify right side
    1,385,163.90x = 911,345,828,042.66
  5. Step 5: Solve for x
    x = 911,345,828,042.66/1,385,163.90
  6. Step 6: Final answer
    x = 657,933.57

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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.