Home / 740,979.06-1,109,692.50-380,200.44

Finding the Fourth Proportional to 740,979.06, 1,109,692.50 and 380,200.44

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Solution

The fourth proportional to 740,979.06, 1,109,692.50 and 380,200.44 is: 569,389.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,979.06 : 1,109,692.50 = 380,200.44 : x
  2. Step 2: Convert to fraction form
    740,979.06/1,109,692.50 = 380,200.44/x
  3. Step 3: Cross multiply
    740,979.06x = 1,109,692.50 × 380,200.44
  4. Step 4: Simplify right side
    740,979.06x = 421,905,576,764.70
  5. Step 5: Solve for x
    x = 421,905,576,764.70/740,979.06
  6. Step 6: Final answer
    x = 569,389.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.