Home / 740,075.67-1,110,140.10-380,149.47

Finding the Fourth Proportional to 740,075.67, 1,110,140.10 and 380,149.47

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Solution

The fourth proportional to 740,075.67, 1,110,140.10 and 380,149.47 is: 570,237.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,075.67 : 1,110,140.10 = 380,149.47 : x
  2. Step 2: Convert to fraction form
    740,075.67/1,110,140.10 = 380,149.47/x
  3. Step 3: Cross multiply
    740,075.67x = 1,110,140.10 × 380,149.47
  4. Step 4: Simplify right side
    740,075.67x = 422,019,170,640.75
  5. Step 5: Solve for x
    x = 422,019,170,640.75/740,075.67
  6. Step 6: Final answer
    x = 570,237.87

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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.