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Finding the Fourth Proportional to 456,650.29, 630,430.79 and 275,408.34

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Solution

The fourth proportional to 456,650.29, 630,430.79 and 275,408.34 is: 380,216.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,650.29 : 630,430.79 = 275,408.34 : x
  2. Step 2: Convert to fraction form
    456,650.29/630,430.79 = 275,408.34/x
  3. Step 3: Cross multiply
    456,650.29x = 630,430.79 × 275,408.34
  4. Step 4: Simplify right side
    456,650.29x = 173,625,897,358.79
  5. Step 5: Solve for x
    x = 173,625,897,358.79/456,650.29
  6. Step 6: Final answer
    x = 380,216.33

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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.