Finding the Fourth Proportional to 790,072.84, 1,090,292.74 and 427,488.75
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Solution
The fourth proportional to 790,072.84, 1,090,292.74 and 427,488.75 is: 589,930.26
Step by Step Solution
- Step 1: Write the proportion equation
790,072.84 : 1,090,292.74 = 427,488.75 : x - Step 2: Convert to fraction form
790,072.84/1,090,292.74 = 427,488.75/x - Step 3: Cross multiply
790,072.84x = 1,090,292.74 × 427,488.75 - Step 4: Simplify right side
790,072.84x = 466,087,879,487.95 - Step 5: Solve for x
x = 466,087,879,487.95/790,072.84 - Step 6: Final answer
x = 589,930.26
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.