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Finding the Fourth Proportional to 628,937.60, 943,363.20 and 202,467.20

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Solution

The fourth proportional to 628,937.60, 943,363.20 and 202,467.20 is: 303,686.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,937.60 : 943,363.20 = 202,467.20 : x
  2. Step 2: Convert to fraction form
    628,937.60/943,363.20 = 202,467.20/x
  3. Step 3: Cross multiply
    628,937.60x = 943,363.20 × 202,467.20
  4. Step 4: Simplify right side
    628,937.60x = 191,000,105,687.04
  5. Step 5: Solve for x
    x = 191,000,105,687.04/628,937.60
  6. Step 6: Final answer
    x = 303,686.89

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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.