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Finding the Fourth Proportional to 555,777, 766,962.18 and 314,054.37

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Solution

The fourth proportional to 555,777, 766,962.18 and 314,054.37 is: 433,389.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,777 : 766,962.18 = 314,054.37 : x
  2. Step 2: Convert to fraction form
    555,777/766,962.18 = 314,054.37/x
  3. Step 3: Cross multiply
    555,777x = 766,962.18 × 314,054.37
  4. Step 4: Simplify right side
    555,777x = 240,867,824,253.73
  5. Step 5: Solve for x
    x = 240,867,824,253.73/555,777
  6. Step 6: Final answer
    x = 433,389.33

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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.