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Finding the Fourth Proportional to 478,784.18, 660,692.49 and 263,913.14

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Solution

The fourth proportional to 478,784.18, 660,692.49 and 263,913.14 is: 364,183.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,784.18 : 660,692.49 = 263,913.14 : x
  2. Step 2: Convert to fraction form
    478,784.18/660,692.49 = 263,913.14/x
  3. Step 3: Cross multiply
    478,784.18x = 660,692.49 × 263,913.14
  4. Step 4: Simplify right side
    478,784.18x = 174,365,429,610.32
  5. Step 5: Solve for x
    x = 174,365,429,610.32/478,784.18
  6. Step 6: Final answer
    x = 364,183.77

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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.