Finding the Fourth Proportional to 842,915.84, 1,264,374.72 and 344,279.84
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Solution
The fourth proportional to 842,915.84, 1,264,374.72 and 344,279.84 is: 516,420.15
Step by Step Solution
- Step 1: Write the proportion equation
842,915.84 : 1,264,374.72 = 344,279.84 : x - Step 2: Convert to fraction form
842,915.84/1,264,374.72 = 344,279.84/x - Step 3: Cross multiply
842,915.84x = 1,264,374.72 × 344,279.84 - Step 4: Simplify right side
842,915.84x = 435,298,726,301.65 - Step 5: Solve for x
x = 435,298,726,301.65/842,915.84 - Step 6: Final answer
x = 516,420.15
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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.