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Finding the Fourth Proportional to 488,312.40, 732,900.60 and 288,382.80

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Solution

The fourth proportional to 488,312.40, 732,900.60 and 288,382.80 is: 432,829.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,312.40 : 732,900.60 = 288,382.80 : x
  2. Step 2: Convert to fraction form
    488,312.40/732,900.60 = 288,382.80/x
  3. Step 3: Cross multiply
    488,312.40x = 732,900.60 × 288,382.80
  4. Step 4: Simplify right side
    488,312.40x = 211,355,927,149.68
  5. Step 5: Solve for x
    x = 211,355,927,149.68/488,312.40
  6. Step 6: Final answer
    x = 432,829.33

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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.