Home / 456,644.18-630,422.34-275,402.21

Finding the Fourth Proportional to 456,644.18, 630,422.34 and 275,402.21

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Solution

The fourth proportional to 456,644.18, 630,422.34 and 275,402.21 is: 380,207.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,644.18 : 630,422.34 = 275,402.21 : x
  2. Step 2: Convert to fraction form
    456,644.18/630,422.34 = 275,402.21/x
  3. Step 3: Cross multiply
    456,644.18x = 630,422.34 × 275,402.21
  4. Step 4: Simplify right side
    456,644.18x = 173,619,705,669.37
  5. Step 5: Solve for x
    x = 173,619,705,669.37/456,644.18
  6. Step 6: Final answer
    x = 380,207.86

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1.5x scale

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.