Finding the Fourth Proportional to 555,911.08, 767,239.56 and 351,980.96
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Solution
The fourth proportional to 555,911.08, 767,239.56 and 351,980.96 is: 485,785.81
Step by Step Solution
- Step 1: Write the proportion equation
555,911.08 : 767,239.56 = 351,980.96 : x - Step 2: Convert to fraction form
555,911.08/767,239.56 = 351,980.96/x - Step 3: Cross multiply
555,911.08x = 767,239.56 × 351,980.96 - Step 4: Simplify right side
555,911.08x = 270,053,716,878.78 - Step 5: Solve for x
x = 270,053,716,878.78/555,911.08 - Step 6: Final answer
x = 485,785.81
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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.