Finding the Fourth Proportional to 778,623.18, 1,074,296.61 and 456,159.84
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Solution
The fourth proportional to 778,623.18, 1,074,296.61 and 456,159.84 is: 629,381.43
Step by Step Solution
- Step 1: Write the proportion equation
778,623.18 : 1,074,296.61 = 456,159.84 : x - Step 2: Convert to fraction form
778,623.18/1,074,296.61 = 456,159.84/x - Step 3: Cross multiply
778,623.18x = 1,074,296.61 × 456,159.84 - Step 4: Simplify right side
778,623.18x = 490,050,969,730.14 - Step 5: Solve for x
x = 490,050,969,730.14/778,623.18 - Step 6: Final answer
x = 629,381.43
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.