Finding the Fourth Proportional to 879,964.18, 1,319,951.13 and 318,984.10
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Solution
The fourth proportional to 879,964.18, 1,319,951.13 and 318,984.10 is: 478,477.91
Step by Step Solution
- Step 1: Write the proportion equation
879,964.18 : 1,319,951.13 = 318,984.10 : x - Step 2: Convert to fraction form
879,964.18/1,319,951.13 = 318,984.10/x - Step 3: Cross multiply
879,964.18x = 1,319,951.13 × 318,984.10 - Step 4: Simplify right side
879,964.18x = 421,043,423,247.03 - Step 5: Solve for x
x = 421,043,423,247.03/879,964.18 - Step 6: Final answer
x = 478,477.91
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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.