Home / 1,188,001.70-1,782,002.55-478,538.90

Finding the Fourth Proportional to 1,188,001.70, 1,782,002.55 and 478,538.90

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Solution

The fourth proportional to 1,188,001.70, 1,782,002.55 and 478,538.90 is: 717,808.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,001.70 : 1,782,002.55 = 478,538.90 : x
  2. Step 2: Convert to fraction form
    1,188,001.70/1,782,002.55 = 478,538.90/x
  3. Step 3: Cross multiply
    1,188,001.70x = 1,782,002.55 × 478,538.90
  4. Step 4: Simplify right side
    1,188,001.70x = 852,757,540,074.20
  5. Step 5: Solve for x
    x = 852,757,540,074.20/1,188,001.70
  6. Step 6: Final answer
    x = 717,808.35

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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.