Finding the Fourth Proportional to 869,437.18, 1,302,466.99 and 489,198.48
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Solution
The fourth proportional to 869,437.18, 1,302,466.99 and 489,198.48 is: 732,847.51
Step by Step Solution
- Step 1: Write the proportion equation
869,437.18 : 1,302,466.99 = 489,198.48 : x - Step 2: Convert to fraction form
869,437.18/1,302,466.99 = 489,198.48/x - Step 3: Cross multiply
869,437.18x = 1,302,466.99 × 489,198.48 - Step 4: Simplify right side
869,437.18x = 637,164,871,758.18 - Step 5: Solve for x
x = 637,164,871,758.18/869,437.18 - Step 6: Final answer
x = 732,847.51
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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.