Home / 1,432,235.41-1,976,508.96-820,441.67

Finding the Fourth Proportional to 1,432,235.41, 1,976,508.96 and 820,441.67

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Solution

The fourth proportional to 1,432,235.41, 1,976,508.96 and 820,441.67 is: 1,132,223.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,235.41 : 1,976,508.96 = 820,441.67 : x
  2. Step 2: Convert to fraction form
    1,432,235.41/1,976,508.96 = 820,441.67/x
  3. Step 3: Cross multiply
    1,432,235.41x = 1,976,508.96 × 820,441.67
  4. Step 4: Simplify right side
    1,432,235.41x = 1,621,610,307,810.16
  5. Step 5: Solve for x
    x = 1,621,610,307,810.16/1,432,235.41
  6. Step 6: Final answer
    x = 1,132,223.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.