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Finding the Fourth Proportional to 456,649.29, 630,429.41 and 275,407.34

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Solution

The fourth proportional to 456,649.29, 630,429.41 and 275,407.34 is: 380,214.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,649.29 : 630,429.41 = 275,407.34 : x
  2. Step 2: Convert to fraction form
    456,649.29/630,429.41 = 275,407.34/x
  3. Step 3: Cross multiply
    456,649.29x = 630,429.41 × 275,407.34
  4. Step 4: Simplify right side
    456,649.29x = 173,624,884,402.24
  5. Step 5: Solve for x
    x = 173,624,884,402.24/456,649.29
  6. Step 6: Final answer
    x = 380,214.94

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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.