Finding the Fourth Proportional to 759,959.28, 1,048,774.68 and 420,421.68
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Solution
The fourth proportional to 759,959.28, 1,048,774.68 and 420,421.68 is: 580,199.00
Step by Step Solution
- Step 1: Write the proportion equation
759,959.28 : 1,048,774.68 = 420,421.68 : x - Step 2: Convert to fraction form
759,959.28/1,048,774.68 = 420,421.68/x - Step 3: Cross multiply
759,959.28x = 1,048,774.68 × 420,421.68 - Step 4: Simplify right side
759,959.28x = 440,927,612,907.06 - Step 5: Solve for x
x = 440,927,612,907.06/759,959.28 - Step 6: Final answer
x = 580,199.00
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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.