Finding the Fourth Proportional to 858,051.68, 1,184,143.12 and 518,454.24
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Solution
The fourth proportional to 858,051.68, 1,184,143.12 and 518,454.24 is: 715,486.07
Step by Step Solution
- Step 1: Write the proportion equation
858,051.68 : 1,184,143.12 = 518,454.24 : x - Step 2: Convert to fraction form
858,051.68/1,184,143.12 = 518,454.24/x - Step 3: Cross multiply
858,051.68x = 1,184,143.12 × 518,454.24 - Step 4: Simplify right side
858,051.68x = 613,924,021,330.83 - Step 5: Solve for x
x = 613,924,021,330.83/858,051.68 - Step 6: Final answer
x = 715,486.07
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1.5x scale
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.