Finding the Fourth Proportional to 509,054.40, 763,575.84 and 309,430.08
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Solution
The fourth proportional to 509,054.40, 763,575.84 and 309,430.08 is: 464,141.62
Step by Step Solution
- Step 1: Write the proportion equation
509,054.40 : 763,575.84 = 309,430.08 : x - Step 2: Convert to fraction form
509,054.40/763,575.84 = 309,430.08/x - Step 3: Cross multiply
509,054.40x = 763,575.84 × 309,430.08 - Step 4: Simplify right side
509,054.40x = 236,273,333,257.27 - Step 5: Solve for x
x = 236,273,333,257.27/509,054.40 - Step 6: Final answer
x = 464,141.62
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.