Finding the Fourth Proportional to 778,601.48, 1,074,495.68 and 451,889.80
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Solution
The fourth proportional to 778,601.48, 1,074,495.68 and 451,889.80 is: 623,622.80
Step by Step Solution
- Step 1: Write the proportion equation
778,601.48 : 1,074,495.68 = 451,889.80 : x - Step 2: Convert to fraction form
778,601.48/1,074,495.68 = 451,889.80/x - Step 3: Cross multiply
778,601.48x = 1,074,495.68 × 451,889.80 - Step 4: Simplify right side
778,601.48x = 485,553,637,936.06 - Step 5: Solve for x
x = 485,553,637,936.06/778,601.48 - Step 6: Final answer
x = 623,622.80
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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.