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Finding the Fourth Proportional to 622,194.48, 858,692.88 and 380,637.90

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Solution

The fourth proportional to 622,194.48, 858,692.88 and 380,637.90 is: 525,319.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,194.48 : 858,692.88 = 380,637.90 : x
  2. Step 2: Convert to fraction form
    622,194.48/858,692.88 = 380,637.90/x
  3. Step 3: Cross multiply
    622,194.48x = 858,692.88 × 380,637.90
  4. Step 4: Simplify right side
    622,194.48x = 326,851,054,588.15
  5. Step 5: Solve for x
    x = 326,851,054,588.15/622,194.48
  6. Step 6: Final answer
    x = 525,319.76

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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.