Finding the Fourth Proportional to 665,314.70, 918,541.15 and 432,963.02
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Solution
The fourth proportional to 665,314.70, 918,541.15 and 432,963.02 is: 597,753.75
Step by Step Solution
- Step 1: Write the proportion equation
665,314.70 : 918,541.15 = 432,963.02 : x - Step 2: Convert to fraction form
665,314.70/918,541.15 = 432,963.02/x - Step 3: Cross multiply
665,314.70x = 918,541.15 × 432,963.02 - Step 4: Simplify right side
665,314.70x = 397,694,351,512.22 - Step 5: Solve for x
x = 397,694,351,512.22/665,314.70 - Step 6: Final answer
x = 597,753.75
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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.