Home / 829,420.26-1,243,389.51-323,863.62

Finding the Fourth Proportional to 829,420.26, 1,243,389.51 and 323,863.62

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Solution

The fourth proportional to 829,420.26, 1,243,389.51 and 323,863.62 is: 485,506.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,420.26 : 1,243,389.51 = 323,863.62 : x
  2. Step 2: Convert to fraction form
    829,420.26/1,243,389.51 = 323,863.62/x
  3. Step 3: Cross multiply
    829,420.26x = 1,243,389.51 × 323,863.62
  4. Step 4: Simplify right side
    829,420.26x = 402,688,627,778.63
  5. Step 5: Solve for x
    x = 402,688,627,778.63/829,420.26
  6. Step 6: Final answer
    x = 485,506.14

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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.