Home / 810,818.24-1,118,960.73-538,416.45

Finding the Fourth Proportional to 810,818.24, 1,118,960.73 and 538,416.45

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Solution

The fourth proportional to 810,818.24, 1,118,960.73 and 538,416.45 is: 743,035.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,818.24 : 1,118,960.73 = 538,416.45 : x
  2. Step 2: Convert to fraction form
    810,818.24/1,118,960.73 = 538,416.45/x
  3. Step 3: Cross multiply
    810,818.24x = 1,118,960.73 × 538,416.45
  4. Step 4: Simplify right side
    810,818.24x = 602,466,863,936.01
  5. Step 5: Solve for x
    x = 602,466,863,936.01/810,818.24
  6. Step 6: Final answer
    x = 743,035.66

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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.