Finding the Fourth Proportional to 779,341.84, 1,169,349.53 and 419,091.63
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Solution
The fourth proportional to 779,341.84, 1,169,349.53 and 419,091.63 is: 628,818.54
Step by Step Solution
- Step 1: Write the proportion equation
779,341.84 : 1,169,349.53 = 419,091.63 : x - Step 2: Convert to fraction form
779,341.84/1,169,349.53 = 419,091.63/x - Step 3: Cross multiply
779,341.84x = 1,169,349.53 × 419,091.63 - Step 4: Simplify right side
779,341.84x = 490,064,596,444.31 - Step 5: Solve for x
x = 490,064,596,444.31/779,341.84 - Step 6: Final answer
x = 628,818.54
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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.