Home / 843,420.87-1,163,949.86-461,447.66

Finding the Fourth Proportional to 843,420.87, 1,163,949.86 and 461,447.66

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Solution

The fourth proportional to 843,420.87, 1,163,949.86 and 461,447.66 is: 636,813.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    843,420.87 : 1,163,949.86 = 461,447.66 : x
  2. Step 2: Convert to fraction form
    843,420.87/1,163,949.86 = 461,447.66/x
  3. Step 3: Cross multiply
    843,420.87x = 1,163,949.86 × 461,447.66
  4. Step 4: Simplify right side
    843,420.87x = 537,101,943,317.82
  5. Step 5: Solve for x
    x = 537,101,943,317.82/843,420.87
  6. Step 6: Final answer
    x = 636,813.67

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1.5x scale

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.