Home / 438,138.56-604,724.88-276,890.72

Finding the Fourth Proportional to 438,138.56, 604,724.88 and 276,890.72

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Solution

The fourth proportional to 438,138.56, 604,724.88 and 276,890.72 is: 382,168.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,138.56 : 604,724.88 = 276,890.72 : x
  2. Step 2: Convert to fraction form
    438,138.56/604,724.88 = 276,890.72/x
  3. Step 3: Cross multiply
    438,138.56x = 604,724.88 × 276,890.72
  4. Step 4: Simplify right side
    438,138.56x = 167,442,707,425.11
  5. Step 5: Solve for x
    x = 167,442,707,425.11/438,138.56
  6. Step 6: Final answer
    x = 382,168.39

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1.5x scale

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.