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Finding the Fourth Proportional to 616,347.72, 850,821.81 and 374,707.45

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Solution

The fourth proportional to 616,347.72, 850,821.81 and 374,707.45 is: 517,255.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,347.72 : 850,821.81 = 374,707.45 : x
  2. Step 2: Convert to fraction form
    616,347.72/850,821.81 = 374,707.45/x
  3. Step 3: Cross multiply
    616,347.72x = 850,821.81 × 374,707.45
  4. Step 4: Simplify right side
    616,347.72x = 318,809,270,829.49
  5. Step 5: Solve for x
    x = 318,809,270,829.49/616,347.72
  6. Step 6: Final answer
    x = 517,255.54

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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.