Home / 749,075.55-1,123,725.21-275,724.93

Finding the Fourth Proportional to 749,075.55, 1,123,725.21 and 275,724.93

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Solution

The fourth proportional to 749,075.55, 1,123,725.21 and 275,724.93 is: 413,628.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,075.55 : 1,123,725.21 = 275,724.93 : x
  2. Step 2: Convert to fraction form
    749,075.55/1,123,725.21 = 275,724.93/x
  3. Step 3: Cross multiply
    749,075.55x = 1,123,725.21 × 275,724.93
  4. Step 4: Simplify right side
    749,075.55x = 309,839,054,866.49
  5. Step 5: Solve for x
    x = 309,839,054,866.49/749,075.55
  6. Step 6: Final answer
    x = 413,628.58

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Double scale
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Similar ratio
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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.