Finding the Fourth Proportional to 760,156.84, 1,048,972.98 and 420,604.84
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Solution
The fourth proportional to 760,156.84, 1,048,972.98 and 420,604.84 is: 580,410.63
Step by Step Solution
- Step 1: Write the proportion equation
760,156.84 : 1,048,972.98 = 420,604.84 : x - Step 2: Convert to fraction form
760,156.84/1,048,972.98 = 420,604.84/x - Step 3: Cross multiply
760,156.84x = 1,048,972.98 × 420,604.84 - Step 4: Simplify right side
760,156.84x = 441,203,112,417.22 - Step 5: Solve for x
x = 441,203,112,417.22/760,156.84 - Step 6: Final answer
x = 580,410.63
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1.5x scale
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.