Finding the Fourth Proportional to 761,929.12, 1,051,487.76 and 422,377.12
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Solution
The fourth proportional to 761,929.12, 1,051,487.76 and 422,377.12 is: 582,894.60
Step by Step Solution
- Step 1: Write the proportion equation
761,929.12 : 1,051,487.76 = 422,377.12 : x - Step 2: Convert to fraction form
761,929.12/1,051,487.76 = 422,377.12/x - Step 3: Cross multiply
761,929.12x = 1,051,487.76 × 422,377.12 - Step 4: Simplify right side
761,929.12x = 444,124,371,784.05 - Step 5: Solve for x
x = 444,124,371,784.05/761,929.12 - Step 6: Final answer
x = 582,894.60
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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.