Finding the Fourth Proportional to 761,620.97, 1,142,403.71 and 306,353.18
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Solution
The fourth proportional to 761,620.97, 1,142,403.71 and 306,353.18 is: 459,518.61
Step by Step Solution
- Step 1: Write the proportion equation
761,620.97 : 1,142,403.71 = 306,353.18 : x - Step 2: Convert to fraction form
761,620.97/1,142,403.71 = 306,353.18/x - Step 3: Cross multiply
761,620.97x = 1,142,403.71 × 306,353.18 - Step 4: Simplify right side
761,620.97x = 349,979,010,726.54 - Step 5: Solve for x
x = 349,979,010,726.54/761,620.97 - Step 6: Final answer
x = 459,518.61
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.