Finding the Fourth Proportional to 745,663.68, 1,118,223.36 and 272,208.96
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Solution
The fourth proportional to 745,663.68, 1,118,223.36 and 272,208.96 is: 408,214.09
Step by Step Solution
- Step 1: Write the proportion equation
745,663.68 : 1,118,223.36 = 272,208.96 : x - Step 2: Convert to fraction form
745,663.68/1,118,223.36 = 272,208.96/x - Step 3: Cross multiply
745,663.68x = 1,118,223.36 × 272,208.96 - Step 4: Simplify right side
745,663.68x = 304,390,417,873.31 - Step 5: Solve for x
x = 304,390,417,873.31/745,663.68 - Step 6: Final answer
x = 408,214.09
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.