Finding the Fourth Proportional to 698,747.41, 964,305.63 and 392,920.07
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Solution
The fourth proportional to 698,747.41, 964,305.63 and 392,920.07 is: 542,248.94
Step by Step Solution
- Step 1: Write the proportion equation
698,747.41 : 964,305.63 = 392,920.07 : x - Step 2: Convert to fraction form
698,747.41/964,305.63 = 392,920.07/x - Step 3: Cross multiply
698,747.41x = 964,305.63 × 392,920.07 - Step 4: Simplify right side
698,747.41x = 378,895,038,051.76 - Step 5: Solve for x
x = 378,895,038,051.76/698,747.41 - Step 6: Final answer
x = 542,248.94
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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.