Finding the Fourth Proportional to 509,056.68, 763,214.80 and 239,045.69
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Solution
The fourth proportional to 509,056.68, 763,214.80 and 239,045.69 is: 358,394.68
Step by Step Solution
- Step 1: Write the proportion equation
509,056.68 : 763,214.80 = 239,045.69 : x - Step 2: Convert to fraction form
509,056.68/763,214.80 = 239,045.69/x - Step 3: Cross multiply
509,056.68x = 763,214.80 × 239,045.69 - Step 4: Simplify right side
509,056.68x = 182,443,204,668.14 - Step 5: Solve for x
x = 182,443,204,668.14/509,056.68 - Step 6: Final answer
x = 358,394.68
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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.