Finding the Fourth Proportional to 1,239,729.09, 1,858,871.10 and 480,683.81
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Solution
The fourth proportional to 1,239,729.09, 1,858,871.10 and 480,683.81 is: 720,745.56
Step by Step Solution
- Step 1: Write the proportion equation
1,239,729.09 : 1,858,871.10 = 480,683.81 : x - Step 2: Convert to fraction form
1,239,729.09/1,858,871.10 = 480,683.81/x - Step 3: Cross multiply
1,239,729.09x = 1,858,871.10 × 480,683.81 - Step 4: Simplify right side
1,239,729.09x = 893,529,242,646.89 - Step 5: Solve for x
x = 893,529,242,646.89/1,239,729.09 - Step 6: Final answer
x = 720,745.56
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.