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Finding the Fourth Proportional to 628,938.60, 943,364.70 and 202,468.20

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Solution

The fourth proportional to 628,938.60, 943,364.70 and 202,468.20 is: 303,688.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,938.60 : 943,364.70 = 202,468.20 : x
  2. Step 2: Convert to fraction form
    628,938.60/943,364.70 = 202,468.20/x
  3. Step 3: Cross multiply
    628,938.60x = 943,364.70 × 202,468.20
  4. Step 4: Simplify right side
    628,938.60x = 191,001,352,752.54
  5. Step 5: Solve for x
    x = 191,001,352,752.54/628,938.60
  6. Step 6: Final answer
    x = 303,688.39

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Double scale
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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.