Finding the Fourth Proportional to 611,918.70, 843,767.05 and 418,357.95
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Solution
The fourth proportional to 611,918.70, 843,767.05 and 418,357.95 is: 576,868.55
Step by Step Solution
- Step 1: Write the proportion equation
611,918.70 : 843,767.05 = 418,357.95 : x - Step 2: Convert to fraction form
611,918.70/843,767.05 = 418,357.95/x - Step 3: Cross multiply
611,918.70x = 843,767.05 × 418,357.95 - Step 4: Simplify right side
611,918.70x = 352,996,653,315.55 - Step 5: Solve for x
x = 352,996,653,315.55/611,918.70 - Step 6: Final answer
x = 576,868.55
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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.