Home / 887,189.83-1,331,165.99-288,334.51

Finding the Fourth Proportional to 887,189.83, 1,331,165.99 and 288,334.51

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Solution

The fourth proportional to 887,189.83, 1,331,165.99 and 288,334.51 is: 432,625.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,189.83 : 1,331,165.99 = 288,334.51 : x
  2. Step 2: Convert to fraction form
    887,189.83/1,331,165.99 = 288,334.51/x
  3. Step 3: Cross multiply
    887,189.83x = 1,331,165.99 × 288,334.51
  4. Step 4: Simplify right side
    887,189.83x = 383,821,093,455.32
  5. Step 5: Solve for x
    x = 383,821,093,455.32/887,189.83
  6. Step 6: Final answer
    x = 432,625.67

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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.