Home / 1,685,128.20-2,527,692.30-487,089.60

Finding the Fourth Proportional to 1,685,128.20, 2,527,692.30 and 487,089.60

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Solution

The fourth proportional to 1,685,128.20, 2,527,692.30 and 487,089.60 is: 730,634.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,685,128.20 : 2,527,692.30 = 487,089.60 : x
  2. Step 2: Convert to fraction form
    1,685,128.20/2,527,692.30 = 487,089.60/x
  3. Step 3: Cross multiply
    1,685,128.20x = 2,527,692.30 × 487,089.60
  4. Step 4: Simplify right side
    1,685,128.20x = 1,231,212,631,330.08
  5. Step 5: Solve for x
    x = 1,231,212,631,330.08/1,685,128.20
  6. Step 6: Final answer
    x = 730,634.40

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Double scale
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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.