Home / 685,432.63-946,102.02-443,731.52

Finding the Fourth Proportional to 685,432.63, 946,102.02 and 443,731.52

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Solution

The fourth proportional to 685,432.63, 946,102.02 and 443,731.52 is: 612,482.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,432.63 : 946,102.02 = 443,731.52 : x
  2. Step 2: Convert to fraction form
    685,432.63/946,102.02 = 443,731.52/x
  3. Step 3: Cross multiply
    685,432.63x = 946,102.02 × 443,731.52
  4. Step 4: Simplify right side
    685,432.63x = 419,815,285,285.10
  5. Step 5: Solve for x
    x = 419,815,285,285.10/685,432.63
  6. Step 6: Final answer
    x = 612,482.20

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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.