Home / 743,160.85-1,114,467.85-256,719.25

Finding the Fourth Proportional to 743,160.85, 1,114,467.85 and 256,719.25

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Solution

The fourth proportional to 743,160.85, 1,114,467.85 and 256,719.25 is: 384,984.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,160.85 : 1,114,467.85 = 256,719.25 : x
  2. Step 2: Convert to fraction form
    743,160.85/1,114,467.85 = 256,719.25/x
  3. Step 3: Cross multiply
    743,160.85x = 1,114,467.85 × 256,719.25
  4. Step 4: Simplify right side
    743,160.85x = 286,105,350,601.11
  5. Step 5: Solve for x
    x = 286,105,350,601.11/743,160.85
  6. Step 6: Final answer
    x = 384,984.42

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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.