Finding the Fourth Proportional to 662,125.19, 913,762.77 and 390,204.54
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Solution
The fourth proportional to 662,125.19, 913,762.77 and 390,204.54 is: 538,499.95
Step by Step Solution
- Step 1: Write the proportion equation
662,125.19 : 913,762.77 = 390,204.54 : x - Step 2: Convert to fraction form
662,125.19/913,762.77 = 390,204.54/x - Step 3: Cross multiply
662,125.19x = 913,762.77 × 390,204.54 - Step 4: Simplify right side
662,125.19x = 356,554,382,068.61 - Step 5: Solve for x
x = 356,554,382,068.61/662,125.19 - Step 6: Final answer
x = 538,499.95
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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.