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Finding the Fourth Proportional to 622,604.80, 933,907.20 and 307,020.70

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Solution

The fourth proportional to 622,604.80, 933,907.20 and 307,020.70 is: 460,531.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,604.80 : 933,907.20 = 307,020.70 : x
  2. Step 2: Convert to fraction form
    622,604.80/933,907.20 = 307,020.70/x
  3. Step 3: Cross multiply
    622,604.80x = 933,907.20 × 307,020.70
  4. Step 4: Simplify right side
    622,604.80x = 286,728,842,279.04
  5. Step 5: Solve for x
    x = 286,728,842,279.04/622,604.80
  6. Step 6: Final answer
    x = 460,531.05

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Similar ratio
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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.