Finding the Fourth Proportional to 646,952.70, 970,299.45 and 309,992.70
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Solution
The fourth proportional to 646,952.70, 970,299.45 and 309,992.70 is: 464,926.95
Step by Step Solution
- Step 1: Write the proportion equation
646,952.70 : 970,299.45 = 309,992.70 : x - Step 2: Convert to fraction form
646,952.70/970,299.45 = 309,992.70/x - Step 3: Cross multiply
646,952.70x = 970,299.45 × 309,992.70 - Step 4: Simplify right side
646,952.70x = 300,785,746,314.02 - Step 5: Solve for x
x = 300,785,746,314.02/646,952.70 - Step 6: Final answer
x = 464,926.95
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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.