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Finding the Fourth Proportional to 610,771.56, 842,514.57 and 380,929.81

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Solution

The fourth proportional to 610,771.56, 842,514.57 and 380,929.81 is: 525,464.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,771.56 : 842,514.57 = 380,929.81 : x
  2. Step 2: Convert to fraction form
    610,771.56/842,514.57 = 380,929.81/x
  3. Step 3: Cross multiply
    610,771.56x = 842,514.57 × 380,929.81
  4. Step 4: Simplify right side
    610,771.56x = 320,938,914,220.83
  5. Step 5: Solve for x
    x = 320,938,914,220.83/610,771.56
  6. Step 6: Final answer
    x = 525,464.73

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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.