Home / 921,441.42-1,271,692.44-513,580.50

Finding the Fourth Proportional to 921,441.42, 1,271,692.44 and 513,580.50

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Solution

The fourth proportional to 921,441.42, 1,271,692.44 and 513,580.50 is: 708,798.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,441.42 : 1,271,692.44 = 513,580.50 : x
  2. Step 2: Convert to fraction form
    921,441.42/1,271,692.44 = 513,580.50/x
  3. Step 3: Cross multiply
    921,441.42x = 1,271,692.44 × 513,580.50
  4. Step 4: Simplify right side
    921,441.42x = 653,116,439,181.42
  5. Step 5: Solve for x
    x = 653,116,439,181.42/921,441.42
  6. Step 6: Final answer
    x = 708,798.66

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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.