Finding the Fourth Proportional to 554,911.84, 765,742.17 and 313,161.54
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Solution
The fourth proportional to 554,911.84, 765,742.17 and 313,161.54 is: 432,142.52
Step by Step Solution
- Step 1: Write the proportion equation
554,911.84 : 765,742.17 = 313,161.54 : x - Step 2: Convert to fraction form
554,911.84/765,742.17 = 313,161.54/x - Step 3: Cross multiply
554,911.84x = 765,742.17 × 313,161.54 - Step 4: Simplify right side
554,911.84x = 239,800,998,489.11 - Step 5: Solve for x
x = 239,800,998,489.11/554,911.84 - Step 6: Final answer
x = 432,142.52
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.