Home / 810,163.86-1,117,992.08-465,973.80

Finding the Fourth Proportional to 810,163.86, 1,117,992.08 and 465,973.80

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Solution

The fourth proportional to 810,163.86, 1,117,992.08 and 465,973.80 is: 643,024.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,163.86 : 1,117,992.08 = 465,973.80 : x
  2. Step 2: Convert to fraction form
    810,163.86/1,117,992.08 = 465,973.80/x
  3. Step 3: Cross multiply
    810,163.86x = 1,117,992.08 × 465,973.80
  4. Step 4: Simplify right side
    810,163.86x = 520,955,017,887.50
  5. Step 5: Solve for x
    x = 520,955,017,887.50/810,163.86
  6. Step 6: Final answer
    x = 643,024.26

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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.