Home / 1,190,607.87-1,786,157.85-391,937.34

Finding the Fourth Proportional to 1,190,607.87, 1,786,157.85 and 391,937.34

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Solution

The fourth proportional to 1,190,607.87, 1,786,157.85 and 391,937.34 is: 587,987.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,607.87 : 1,786,157.85 = 391,937.34 : x
  2. Step 2: Convert to fraction form
    1,190,607.87/1,786,157.85 = 391,937.34/x
  3. Step 3: Cross multiply
    1,190,607.87x = 1,786,157.85 × 391,937.34
  4. Step 4: Simplify right side
    1,190,607.87x = 700,061,956,549.12
  5. Step 5: Solve for x
    x = 700,061,956,549.12/1,190,607.87
  6. Step 6: Final answer
    x = 587,987.01

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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.