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Finding the Fourth Proportional to 421,032.60, 633,104.10 and 352,603.80

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Solution

The fourth proportional to 421,032.60, 633,104.10 and 352,603.80 is: 530,208.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,032.60 : 633,104.10 = 352,603.80 : x
  2. Step 2: Convert to fraction form
    421,032.60/633,104.10 = 352,603.80/x
  3. Step 3: Cross multiply
    421,032.60x = 633,104.10 × 352,603.80
  4. Step 4: Simplify right side
    421,032.60x = 223,234,911,455.58
  5. Step 5: Solve for x
    x = 223,234,911,455.58/421,032.60
  6. Step 6: Final answer
    x = 530,208.14

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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.