Finding the Fourth Proportional to 729,125.98, 1,006,250.31 and 402,503.00
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Solution
The fourth proportional to 729,125.98, 1,006,250.31 and 402,503.00 is: 555,485.30
Step by Step Solution
- Step 1: Write the proportion equation
729,125.98 : 1,006,250.31 = 402,503.00 : x - Step 2: Convert to fraction form
729,125.98/1,006,250.31 = 402,503.00/x - Step 3: Cross multiply
729,125.98x = 1,006,250.31 × 402,503.00 - Step 4: Simplify right side
729,125.98x = 405,018,763,494.68 - Step 5: Solve for x
x = 405,018,763,494.68/729,125.98 - Step 6: Final answer
x = 555,485.30
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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.