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Finding the Fourth Proportional to 632,643.60, 947,813.40 and 299,485.20

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Solution

The fourth proportional to 632,643.60, 947,813.40 and 299,485.20 is: 448,682.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,643.60 : 947,813.40 = 299,485.20 : x
  2. Step 2: Convert to fraction form
    632,643.60/947,813.40 = 299,485.20/x
  3. Step 3: Cross multiply
    632,643.60x = 947,813.40 × 299,485.20
  4. Step 4: Simplify right side
    632,643.60x = 283,856,085,661.68
  5. Step 5: Solve for x
    x = 283,856,085,661.68/632,643.60
  6. Step 6: Final answer
    x = 448,682.46

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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.