Home / 478,688.40-660,563.04-263,827.76

Finding the Fourth Proportional to 478,688.40, 660,563.04 and 263,827.76

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Solution

The fourth proportional to 478,688.40, 660,563.04 and 263,827.76 is: 364,067.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,688.40 : 660,563.04 = 263,827.76 : x
  2. Step 2: Convert to fraction form
    478,688.40/660,563.04 = 263,827.76/x
  3. Step 3: Cross multiply
    478,688.40x = 660,563.04 × 263,827.76
  4. Step 4: Simplify right side
    478,688.40x = 174,274,867,181.99
  5. Step 5: Solve for x
    x = 174,274,867,181.99/478,688.40
  6. Step 6: Final answer
    x = 364,067.45

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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.