Home / 680,069.20-1,018,548.60-347,256.40

Finding the Fourth Proportional to 680,069.20, 1,018,548.60 and 347,256.40

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Solution

The fourth proportional to 680,069.20, 1,018,548.60 and 347,256.40 is: 520,090.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,069.20 : 1,018,548.60 = 347,256.40 : x
  2. Step 2: Convert to fraction form
    680,069.20/1,018,548.60 = 347,256.40/x
  3. Step 3: Cross multiply
    680,069.20x = 1,018,548.60 × 347,256.40
  4. Step 4: Simplify right side
    680,069.20x = 353,697,520,061.04
  5. Step 5: Solve for x
    x = 353,697,520,061.04/680,069.20
  6. Step 6: Final answer
    x = 520,090.48

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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.