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Finding the Fourth Proportional to 456,645.92, 630,424.76 and 275,403.96

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Solution

The fourth proportional to 456,645.92, 630,424.76 and 275,403.96 is: 380,210.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,645.92 : 630,424.76 = 275,403.96 : x
  2. Step 2: Convert to fraction form
    456,645.92/630,424.76 = 275,403.96/x
  3. Step 3: Cross multiply
    456,645.92x = 630,424.76 × 275,403.96
  4. Step 4: Simplify right side
    456,645.92x = 173,621,474,009.03
  5. Step 5: Solve for x
    x = 173,621,474,009.03/456,645.92
  6. Step 6: Final answer
    x = 380,210.29

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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.