Finding the Fourth Proportional to 1,234,398.06, 1,703,400.84 and 690,428.79
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Solution
The fourth proportional to 1,234,398.06, 1,703,400.84 and 690,428.79 is: 952,753.43
Step by Step Solution
- Step 1: Write the proportion equation
1,234,398.06 : 1,703,400.84 = 690,428.79 : x - Step 2: Convert to fraction form
1,234,398.06/1,703,400.84 = 690,428.79/x - Step 3: Cross multiply
1,234,398.06x = 1,703,400.84 × 690,428.79 - Step 4: Simplify right side
1,234,398.06x = 1,176,076,980,846.18 - Step 5: Solve for x
x = 1,176,076,980,846.18/1,234,398.06 - Step 6: Final answer
x = 952,753.43
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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.