Finding the Fourth Proportional to 1,621,258.84, 2,236,176.66 and 1,137,931.96
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Solution
The fourth proportional to 1,621,258.84, 2,236,176.66 and 1,137,931.96 is: 1,569,531.54
Step by Step Solution
- Step 1: Write the proportion equation
1,621,258.84 : 2,236,176.66 = 1,137,931.96 : x - Step 2: Convert to fraction form
1,621,258.84/2,236,176.66 = 1,137,931.96/x - Step 3: Cross multiply
1,621,258.84x = 2,236,176.66 × 1,137,931.96 - Step 4: Simplify right side
1,621,258.84x = 2,544,616,889,620.05 - Step 5: Solve for x
x = 2,544,616,889,620.05/1,621,258.84 - Step 6: Final answer
x = 1,569,531.54
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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.