Home / 829,427.26-1,243,400-323,870.62

Finding the Fourth Proportional to 829,427.26, 1,243,400 and 323,870.62

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Solution

The fourth proportional to 829,427.26, 1,243,400 and 323,870.62 is: 485,516.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,427.26 : 1,243,400 = 323,870.62 : x
  2. Step 2: Convert to fraction form
    829,427.26/1,243,400 = 323,870.62/x
  3. Step 3: Cross multiply
    829,427.26x = 1,243,400 × 323,870.62
  4. Step 4: Simplify right side
    829,427.26x = 402,700,728,908
  5. Step 5: Solve for x
    x = 402,700,728,908/829,427.26
  6. Step 6: Final answer
    x = 485,516.63

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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.