Finding the Fourth Proportional to 900,550.84, 1,242,769.97 and 492,643.92
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Solution
The fourth proportional to 900,550.84, 1,242,769.97 and 492,643.92 is: 679,853.98
Step by Step Solution
- Step 1: Write the proportion equation
900,550.84 : 1,242,769.97 = 492,643.92 : x - Step 2: Convert to fraction form
900,550.84/1,242,769.97 = 492,643.92/x - Step 3: Cross multiply
900,550.84x = 1,242,769.97 × 492,643.92 - Step 4: Simplify right side
900,550.84x = 612,243,069,679.08 - Step 5: Solve for x
x = 612,243,069,679.08/900,550.84 - Step 6: Final answer
x = 679,853.98
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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.