Finding the Fourth Proportional to 1,557,679.63, 2,149,599.87 and 869,351.50
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Solution
The fourth proportional to 1,557,679.63, 2,149,599.87 and 869,351.50 is: 1,199,706.18
Step by Step Solution
- Step 1: Write the proportion equation
1,557,679.63 : 2,149,599.87 = 869,351.50 : x - Step 2: Convert to fraction form
1,557,679.63/2,149,599.87 = 869,351.50/x - Step 3: Cross multiply
1,557,679.63x = 2,149,599.87 × 869,351.50 - Step 4: Simplify right side
1,557,679.63x = 1,868,757,871,384.31 - Step 5: Solve for x
x = 1,868,757,871,384.31/1,557,679.63 - Step 6: Final answer
x = 1,199,706.18
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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.