Home / 911,712.96-1,367,153.64-378,916.56

Finding the Fourth Proportional to 911,712.96, 1,367,153.64 and 378,916.56

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Solution

The fourth proportional to 911,712.96, 1,367,153.64 and 378,916.56 is: 568,202.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,712.96 : 1,367,153.64 = 378,916.56 : x
  2. Step 2: Convert to fraction form
    911,712.96/1,367,153.64 = 378,916.56/x
  3. Step 3: Cross multiply
    911,712.96x = 1,367,153.64 × 378,916.56
  4. Step 4: Simplify right side
    911,712.96x = 518,037,154,260.28
  5. Step 5: Solve for x
    x = 518,037,154,260.28/911,712.96
  6. Step 6: Final answer
    x = 568,202.03

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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.