Home / 646,719.78-892,482.52-371,122.54

Finding the Fourth Proportional to 646,719.78, 892,482.52 and 371,122.54

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Solution

The fourth proportional to 646,719.78, 892,482.52 and 371,122.54 is: 512,154.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,719.78 : 892,482.52 = 371,122.54 : x
  2. Step 2: Convert to fraction form
    646,719.78/892,482.52 = 371,122.54/x
  3. Step 3: Cross multiply
    646,719.78x = 892,482.52 × 371,122.54
  4. Step 4: Simplify right side
    646,719.78x = 331,220,379,728.00
  5. Step 5: Solve for x
    x = 331,220,379,728.00/646,719.78
  6. Step 6: Final answer
    x = 512,154.40

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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.