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Finding the Fourth Proportional to 628,378.16, 942,654.72 and 201,926.72

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Solution

The fourth proportional to 628,378.16, 942,654.72 and 201,926.72 is: 302,918.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,378.16 : 942,654.72 = 201,926.72 : x
  2. Step 2: Convert to fraction form
    628,378.16/942,654.72 = 201,926.72/x
  3. Step 3: Cross multiply
    628,378.16x = 942,654.72 × 201,926.72
  4. Step 4: Simplify right side
    628,378.16x = 190,347,175,702.12
  5. Step 5: Solve for x
    x = 190,347,175,702.12/628,378.16
  6. Step 6: Final answer
    x = 302,918.19

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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.