Finding the Fourth Proportional to 389,774.63, 537,888.99 and 210,926.63
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Solution
The fourth proportional to 389,774.63, 537,888.99 and 210,926.63 is: 291,078.75
Step by Step Solution
- Step 1: Write the proportion equation
389,774.63 : 537,888.99 = 210,926.63 : x - Step 2: Convert to fraction form
389,774.63/537,888.99 = 210,926.63/x - Step 3: Cross multiply
389,774.63x = 537,888.99 × 210,926.63 - Step 4: Simplify right side
389,774.63x = 113,455,109,285.36 - Step 5: Solve for x
x = 113,455,109,285.36/389,774.63 - Step 6: Final answer
x = 291,078.75
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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.