Home / 538,146.83-742,674.53-308,702.43

Finding the Fourth Proportional to 538,146.83, 742,674.53 and 308,702.43

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Solution

The fourth proportional to 538,146.83, 742,674.53 and 308,702.43 is: 426,027.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,146.83 : 742,674.53 = 308,702.43 : x
  2. Step 2: Convert to fraction form
    538,146.83/742,674.53 = 308,702.43/x
  3. Step 3: Cross multiply
    538,146.83x = 742,674.53 × 308,702.43
  4. Step 4: Simplify right side
    538,146.83x = 229,265,432,110.11
  5. Step 5: Solve for x
    x = 229,265,432,110.11/538,146.83
  6. Step 6: Final answer
    x = 426,027.66

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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.