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Finding the Fourth Proportional to 654,643.73, 903,402.44 and 368,157.67

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Solution

The fourth proportional to 654,643.73, 903,402.44 and 368,157.67 is: 508,054.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,643.73 : 903,402.44 = 368,157.67 : x
  2. Step 2: Convert to fraction form
    654,643.73/903,402.44 = 368,157.67/x
  3. Step 3: Cross multiply
    654,643.73x = 903,402.44 × 368,157.67
  4. Step 4: Simplify right side
    654,643.73x = 332,594,537,382.72
  5. Step 5: Solve for x
    x = 332,594,537,382.72/654,643.73
  6. Step 6: Final answer
    x = 508,054.26

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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.