Finding the Fourth Proportional to 5,139,829.37, 7,704,318.78 and 1,724,878.08
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Solution
The fourth proportional to 5,139,829.37, 7,704,318.78 and 1,724,878.08 is: 2,585,496.45
Step by Step Solution
- Step 1: Write the proportion equation
5,139,829.37 : 7,704,318.78 = 1,724,878.08 : x - Step 2: Convert to fraction form
5,139,829.37/7,704,318.78 = 1,724,878.08/x - Step 3: Cross multiply
5,139,829.37x = 7,704,318.78 × 1,724,878.08 - Step 4: Simplify right side
5,139,829.37x = 13,289,010,584,954.34 - Step 5: Solve for x
x = 13,289,010,584,954.34/5,139,829.37 - Step 6: Final answer
x = 2,585,496.45
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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.