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Finding the Fourth Proportional to 628,915.60, 943,330.20 and 202,445.20

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Solution

The fourth proportional to 628,915.60, 943,330.20 and 202,445.20 is: 303,653.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,915.60 : 943,330.20 = 202,445.20 : x
  2. Step 2: Convert to fraction form
    628,915.60/943,330.20 = 202,445.20/x
  3. Step 3: Cross multiply
    628,915.60x = 943,330.20 × 202,445.20
  4. Step 4: Simplify right side
    628,915.60x = 190,972,671,005.04
  5. Step 5: Solve for x
    x = 190,972,671,005.04/628,915.60
  6. Step 6: Final answer
    x = 303,653.89

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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.