Finding the Fourth Proportional to 917,379.79, 1,266,026.21 and 509,483.53
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Solution
The fourth proportional to 917,379.79, 1,266,026.21 and 509,483.53 is: 703,110.65
Step by Step Solution
- Step 1: Write the proportion equation
917,379.79 : 1,266,026.21 = 509,483.53 : x - Step 2: Convert to fraction form
917,379.79/1,266,026.21 = 509,483.53/x - Step 3: Cross multiply
917,379.79x = 1,266,026.21 × 509,483.53 - Step 4: Simplify right side
917,379.79x = 645,019,502,543.32 - Step 5: Solve for x
x = 645,019,502,543.32/917,379.79 - Step 6: Final answer
x = 703,110.65
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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.