Finding the Fourth Proportional to 785,657.45, 1,084,126.49 and 441,438.68
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Solution
The fourth proportional to 785,657.45, 1,084,126.49 and 441,438.68 is: 609,139.99
Step by Step Solution
- Step 1: Write the proportion equation
785,657.45 : 1,084,126.49 = 441,438.68 : x - Step 2: Convert to fraction form
785,657.45/1,084,126.49 = 441,438.68/x - Step 3: Cross multiply
785,657.45x = 1,084,126.49 × 441,438.68 - Step 4: Simplify right side
785,657.45x = 478,575,368,857.15 - Step 5: Solve for x
x = 478,575,368,857.15/785,657.45 - Step 6: Final answer
x = 609,139.99
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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.