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Finding the Fourth Proportional to 488,370.40, 732,555.60 and 328,938.10

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Solution

The fourth proportional to 488,370.40, 732,555.60 and 328,938.10 is: 493,407.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,370.40 : 732,555.60 = 328,938.10 : x
  2. Step 2: Convert to fraction form
    488,370.40/732,555.60 = 328,938.10/x
  3. Step 3: Cross multiply
    488,370.40x = 732,555.60 × 328,938.10
  4. Step 4: Simplify right side
    488,370.40x = 240,965,447,208.36
  5. Step 5: Solve for x
    x = 240,965,447,208.36/488,370.40
  6. Step 6: Final answer
    x = 493,407.15

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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.