Finding the Fourth Proportional to 745,291.36, 1,118,110.32 and 212,819.68
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Solution
The fourth proportional to 745,291.36, 1,118,110.32 and 212,819.68 is: 319,279.00
Step by Step Solution
- Step 1: Write the proportion equation
745,291.36 : 1,118,110.32 = 212,819.68 : x - Step 2: Convert to fraction form
745,291.36/1,118,110.32 = 212,819.68/x - Step 3: Cross multiply
745,291.36x = 1,118,110.32 × 212,819.68 - Step 4: Simplify right side
745,291.36x = 237,955,880,507.10 - Step 5: Solve for x
x = 237,955,880,507.10/745,291.36 - Step 6: Final answer
x = 319,279.00
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.