Finding the Fourth Proportional to 938,840.13, 1,295,599.68 and 509,120.13
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Solution
The fourth proportional to 938,840.13, 1,295,599.68 and 509,120.13 is: 702,585.94
Step by Step Solution
- Step 1: Write the proportion equation
938,840.13 : 1,295,599.68 = 509,120.13 : x - Step 2: Convert to fraction form
938,840.13/1,295,599.68 = 509,120.13/x - Step 3: Cross multiply
938,840.13x = 1,295,599.68 × 509,120.13 - Step 4: Simplify right side
938,840.13x = 659,615,877,509.56 - Step 5: Solve for x
x = 659,615,877,509.56/938,840.13 - Step 6: Final answer
x = 702,585.94
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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.