Home / 860,606.39-1,290,895.00-299,626.31

Finding the Fourth Proportional to 860,606.39, 1,290,895.00 and 299,626.31

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Solution

The fourth proportional to 860,606.39, 1,290,895.00 and 299,626.31 is: 449,434.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,606.39 : 1,290,895.00 = 299,626.31 : x
  2. Step 2: Convert to fraction form
    860,606.39/1,290,895.00 = 299,626.31/x
  3. Step 3: Cross multiply
    860,606.39x = 1,290,895.00 × 299,626.31
  4. Step 4: Simplify right side
    860,606.39x = 386,786,107,925.62
  5. Step 5: Solve for x
    x = 386,786,107,925.62/860,606.39
  6. Step 6: Final answer
    x = 449,434.39

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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.