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Finding the Fourth Proportional to 837,328.80, 1,255,604.40 and 363,770.40

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Solution

The fourth proportional to 837,328.80, 1,255,604.40 and 363,770.40 is: 545,486.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    837,328.80 : 1,255,604.40 = 363,770.40 : x
  2. Step 2: Convert to fraction form
    837,328.80/1,255,604.40 = 363,770.40/x
  3. Step 3: Cross multiply
    837,328.80x = 1,255,604.40 × 363,770.40
  4. Step 4: Simplify right side
    837,328.80x = 456,751,714,829.76
  5. Step 5: Solve for x
    x = 456,751,714,829.76/837,328.80
  6. Step 6: Final answer
    x = 545,486.69

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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.