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Finding the Fourth Proportional to 624,796.40, 862,200.60 and 352,875.44

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Solution

The fourth proportional to 624,796.40, 862,200.60 and 352,875.44 is: 486,957.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,796.40 : 862,200.60 = 352,875.44 : x
  2. Step 2: Convert to fraction form
    624,796.40/862,200.60 = 352,875.44/x
  3. Step 3: Cross multiply
    624,796.40x = 862,200.60 × 352,875.44
  4. Step 4: Simplify right side
    624,796.40x = 304,249,416,093.26
  5. Step 5: Solve for x
    x = 304,249,416,093.26/624,796.40
  6. Step 6: Final answer
    x = 486,957.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.