Finding the Fourth Proportional to 928,943.08, 1,281,992.26 and 521,174.12
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Solution
The fourth proportional to 928,943.08, 1,281,992.26 and 521,174.12 is: 719,248.79
Step by Step Solution
- Step 1: Write the proportion equation
928,943.08 : 1,281,992.26 = 521,174.12 : x - Step 2: Convert to fraction form
928,943.08/1,281,992.26 = 521,174.12/x - Step 3: Cross multiply
928,943.08x = 1,281,992.26 × 521,174.12 - Step 4: Simplify right side
928,943.08x = 668,141,187,952.31 - Step 5: Solve for x
x = 668,141,187,952.31/928,943.08 - Step 6: Final answer
x = 719,248.79
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.