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Finding the Fourth Proportional to 543,804.09, 750,424.17 and 302,101.40

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Solution

The fourth proportional to 543,804.09, 750,424.17 and 302,101.40 is: 416,885.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,804.09 : 750,424.17 = 302,101.40 : x
  2. Step 2: Convert to fraction form
    543,804.09/750,424.17 = 302,101.40/x
  3. Step 3: Cross multiply
    543,804.09x = 750,424.17 × 302,101.40
  4. Step 4: Simplify right side
    543,804.09x = 226,704,188,598.72
  5. Step 5: Solve for x
    x = 226,704,188,598.72/543,804.09
  6. Step 6: Final answer
    x = 416,885.77

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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.