Finding the Fourth Proportional to 708,661.62, 977,915.97 and 402,697.08
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Solution
The fourth proportional to 708,661.62, 977,915.97 and 402,697.08 is: 555,700.91
Step by Step Solution
- Step 1: Write the proportion equation
708,661.62 : 977,915.97 = 402,697.08 : x - Step 2: Convert to fraction form
708,661.62/977,915.97 = 402,697.08/x - Step 3: Cross multiply
708,661.62x = 977,915.97 × 402,697.08 - Step 4: Simplify right side
708,661.62x = 393,803,905,604.37 - Step 5: Solve for x
x = 393,803,905,604.37/708,661.62 - Step 6: Final answer
x = 555,700.91
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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.