Finding the Fourth Proportional to 425,261.80, 638,843.10 and 355,277.80
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Solution
The fourth proportional to 425,261.80, 638,843.10 and 355,277.80 is: 533,710.70
Step by Step Solution
- Step 1: Write the proportion equation
425,261.80 : 638,843.10 = 355,277.80 : x - Step 2: Convert to fraction form
425,261.80/638,843.10 = 355,277.80/x - Step 3: Cross multiply
425,261.80x = 638,843.10 × 355,277.80 - Step 4: Simplify right side
425,261.80x = 226,966,771,113.18 - Step 5: Solve for x
x = 226,966,771,113.18/425,261.80 - Step 6: Final answer
x = 533,710.70
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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.