Finding the Fourth Proportional to 789,918.50, 1,184,651.55 and 257,486.06
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Solution
The fourth proportional to 789,918.50, 1,184,651.55 and 257,486.06 is: 386,155.35
Step by Step Solution
- Step 1: Write the proportion equation
789,918.50 : 1,184,651.55 = 257,486.06 : x - Step 2: Convert to fraction form
789,918.50/1,184,651.55 = 257,486.06/x - Step 3: Cross multiply
789,918.50x = 1,184,651.55 × 257,486.06 - Step 4: Simplify right side
789,918.50x = 305,031,254,159.14 - Step 5: Solve for x
x = 305,031,254,159.14/789,918.50 - Step 6: Final answer
x = 386,155.35
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1.5x scale
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.