Finding the Fourth Proportional to 555,961.36, 767,221.08 and 310,943.54
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Solution
The fourth proportional to 555,961.36, 767,221.08 and 310,943.54 is: 429,098.95
Step by Step Solution
- Step 1: Write the proportion equation
555,961.36 : 767,221.08 = 310,943.54 : x - Step 2: Convert to fraction form
555,961.36/767,221.08 = 310,943.54/x - Step 3: Cross multiply
555,961.36x = 767,221.08 × 310,943.54 - Step 4: Simplify right side
555,961.36x = 238,562,438,577.82 - Step 5: Solve for x
x = 238,562,438,577.82/555,961.36 - Step 6: Final answer
x = 429,098.95
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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.