Finding the Fourth Proportional to 513,038.48, 707,991.36 and 286,683.98
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Solution
The fourth proportional to 513,038.48, 707,991.36 and 286,683.98 is: 395,622.92
Step by Step Solution
- Step 1: Write the proportion equation
513,038.48 : 707,991.36 = 286,683.98 : x - Step 2: Convert to fraction form
513,038.48/707,991.36 = 286,683.98/x - Step 3: Cross multiply
513,038.48x = 707,991.36 × 286,683.98 - Step 4: Simplify right side
513,038.48x = 202,969,780,890.41 - Step 5: Solve for x
x = 202,969,780,890.41/513,038.48 - Step 6: Final answer
x = 395,622.92
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.