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Finding the Fourth Proportional to 622,385.60, 933,627.48 and 306,670.40

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Solution

The fourth proportional to 622,385.60, 933,627.48 and 306,670.40 is: 460,029.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,385.60 : 933,627.48 = 306,670.40 : x
  2. Step 2: Convert to fraction form
    622,385.60/933,627.48 = 306,670.40/x
  3. Step 3: Cross multiply
    622,385.60x = 933,627.48 × 306,670.40
  4. Step 4: Simplify right side
    622,385.60x = 286,315,912,742.59
  5. Step 5: Solve for x
    x = 286,315,912,742.59/622,385.60
  6. Step 6: Final answer
    x = 460,029.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.