Finding the Fourth Proportional to 527,595.84, 728,067.12 and 309,801.12
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Solution
The fourth proportional to 527,595.84, 728,067.12 and 309,801.12 is: 427,516.66
Step by Step Solution
- Step 1: Write the proportion equation
527,595.84 : 728,067.12 = 309,801.12 : x - Step 2: Convert to fraction form
527,595.84/728,067.12 = 309,801.12/x - Step 3: Cross multiply
527,595.84x = 728,067.12 × 309,801.12 - Step 4: Simplify right side
527,595.84x = 225,556,009,211.17 - Step 5: Solve for x
x = 225,556,009,211.17/527,595.84 - Step 6: Final answer
x = 427,516.66
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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.