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Finding the Fourth Proportional to 488,407.80, 732,611.70 and 370,309.80

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Solution

The fourth proportional to 488,407.80, 732,611.70 and 370,309.80 is: 555,464.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,407.80 : 732,611.70 = 370,309.80 : x
  2. Step 2: Convert to fraction form
    488,407.80/732,611.70 = 370,309.80/x
  3. Step 3: Cross multiply
    488,407.80x = 732,611.70 × 370,309.80
  4. Step 4: Simplify right side
    488,407.80x = 271,293,292,104.66
  5. Step 5: Solve for x
    x = 271,293,292,104.66/488,407.80
  6. Step 6: Final answer
    x = 555,464.70

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1.5x scale

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.