Home / 672,064.60-1,008,096.90-639,405.40

Finding the Fourth Proportional to 672,064.60, 1,008,096.90 and 639,405.40

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Solution

The fourth proportional to 672,064.60, 1,008,096.90 and 639,405.40 is: 959,108.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,064.60 : 1,008,096.90 = 639,405.40 : x
  2. Step 2: Convert to fraction form
    672,064.60/1,008,096.90 = 639,405.40/x
  3. Step 3: Cross multiply
    672,064.60x = 1,008,096.90 × 639,405.40
  4. Step 4: Simplify right side
    672,064.60x = 644,582,601,583.26
  5. Step 5: Solve for x
    x = 644,582,601,583.26/672,064.60
  6. Step 6: Final answer
    x = 959,108.10

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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.