Finding the Fourth Proportional to 403,390.99, 556,851.84 and 287,179.48
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Solution
The fourth proportional to 403,390.99, 556,851.84 and 287,179.48 is: 396,430.33
Step by Step Solution
- Step 1: Write the proportion equation
403,390.99 : 556,851.84 = 287,179.48 : x - Step 2: Convert to fraction form
403,390.99/556,851.84 = 287,179.48/x - Step 3: Cross multiply
403,390.99x = 556,851.84 × 287,179.48 - Step 4: Simplify right side
403,390.99x = 159,916,421,848.24 - Step 5: Solve for x
x = 159,916,421,848.24/403,390.99 - Step 6: Final answer
x = 396,430.33
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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.