Finding the Fourth Proportional to 1,005,346.24, 1,386,824.16 and 637,149.76
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Solution
The fourth proportional to 1,005,346.24, 1,386,824.16 and 637,149.76 is: 878,915.79
Step by Step Solution
- Step 1: Write the proportion equation
1,005,346.24 : 1,386,824.16 = 637,149.76 : x - Step 2: Convert to fraction form
1,005,346.24/1,386,824.16 = 637,149.76/x - Step 3: Cross multiply
1,005,346.24x = 1,386,824.16 × 637,149.76 - Step 4: Simplify right side
1,005,346.24x = 883,614,680,706.20 - Step 5: Solve for x
x = 883,614,680,706.20/1,005,346.24 - Step 6: Final answer
x = 878,915.79
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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.