Finding the Fourth Proportional to 851,557.12, 1,275,889.71 and 513,888.23
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Solution
The fourth proportional to 851,557.12, 1,275,889.71 and 513,888.23 is: 769,959.75
Step by Step Solution
- Step 1: Write the proportion equation
851,557.12 : 1,275,889.71 = 513,888.23 : x - Step 2: Convert to fraction form
851,557.12/1,275,889.71 = 513,888.23/x - Step 3: Cross multiply
851,557.12x = 1,275,889.71 × 513,888.23 - Step 4: Simplify right side
851,557.12x = 655,664,706,973.30 - Step 5: Solve for x
x = 655,664,706,973.30/851,557.12 - Step 6: Final answer
x = 769,959.75
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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.