Home / 1,138,167.86-1,571,403.85-730,445.45

Finding the Fourth Proportional to 1,138,167.86, 1,571,403.85 and 730,445.45

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Solution

The fourth proportional to 1,138,167.86, 1,571,403.85 and 730,445.45 is: 1,008,484.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,167.86 : 1,571,403.85 = 730,445.45 : x
  2. Step 2: Convert to fraction form
    1,138,167.86/1,571,403.85 = 730,445.45/x
  3. Step 3: Cross multiply
    1,138,167.86x = 1,571,403.85 × 730,445.45
  4. Step 4: Simplify right side
    1,138,167.86x = 1,147,824,782,661.85
  5. Step 5: Solve for x
    x = 1,147,824,782,661.85/1,138,167.86
  6. Step 6: Final answer
    x = 1,008,484.63

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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.