Finding the Fourth Proportional to 725,418.84, 1,001,064.72 and 403,123.08
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Solution
The fourth proportional to 725,418.84, 1,001,064.72 and 403,123.08 is: 556,302.47
Step by Step Solution
- Step 1: Write the proportion equation
725,418.84 : 1,001,064.72 = 403,123.08 : x - Step 2: Convert to fraction form
725,418.84/1,001,064.72 = 403,123.08/x - Step 3: Cross multiply
725,418.84x = 1,001,064.72 × 403,123.08 - Step 4: Simplify right side
725,418.84x = 403,552,293,205.74 - Step 5: Solve for x
x = 403,552,293,205.74/725,418.84 - Step 6: Final answer
x = 556,302.47
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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.