Home / 1,187,692.64-1,781,619.60-477,720.80

Finding the Fourth Proportional to 1,187,692.64, 1,781,619.60 and 477,720.80

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Solution

The fourth proportional to 1,187,692.64, 1,781,619.60 and 477,720.80 is: 716,613.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,692.64 : 1,781,619.60 = 477,720.80 : x
  2. Step 2: Convert to fraction form
    1,187,692.64/1,781,619.60 = 477,720.80/x
  3. Step 3: Cross multiply
    1,187,692.64x = 1,781,619.60 × 477,720.80
  4. Step 4: Simplify right side
    1,187,692.64x = 851,116,740,607.68
  5. Step 5: Solve for x
    x = 851,116,740,607.68/1,187,692.64
  6. Step 6: Final answer
    x = 716,613.64

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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.