Finding the Fourth Proportional to 938,830.10, 1,295,585.88 and 509,110.12
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Solution
The fourth proportional to 938,830.10, 1,295,585.88 and 509,110.12 is: 702,572.15
Step by Step Solution
- Step 1: Write the proportion equation
938,830.10 : 1,295,585.88 = 509,110.12 : x - Step 2: Convert to fraction form
938,830.10/1,295,585.88 = 509,110.12/x - Step 3: Cross multiply
938,830.10x = 1,295,585.88 × 509,110.12 - Step 4: Simplify right side
938,830.10x = 659,595,882,837.11 - Step 5: Solve for x
x = 659,595,882,837.11/938,830.10 - Step 6: Final answer
x = 702,572.15
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1.5x scale
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.