Finding the Fourth Proportional to 4,778,176.53, 7,167,677.65 and 1,319,915.00
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Solution
The fourth proportional to 4,778,176.53, 7,167,677.65 and 1,319,915.00 is: 1,979,986.55
Step by Step Solution
- Step 1: Write the proportion equation
4,778,176.53 : 7,167,677.65 = 1,319,915.00 : x - Step 2: Convert to fraction form
4,778,176.53/7,167,677.65 = 1,319,915.00/x - Step 3: Cross multiply
4,778,176.53x = 7,167,677.65 × 1,319,915.00 - Step 4: Simplify right side
4,778,176.53x = 9,460,725,258,369.26 - Step 5: Solve for x
x = 9,460,725,258,369.26/4,778,176.53 - Step 6: Final answer
x = 1,979,986.55
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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.