Finding the Fourth Proportional to 509,688.24, 703,412.28 and 283,354.80
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Solution
The fourth proportional to 509,688.24, 703,412.28 and 283,354.80 is: 391,053.26
Step by Step Solution
- Step 1: Write the proportion equation
509,688.24 : 703,412.28 = 283,354.80 : x - Step 2: Convert to fraction form
509,688.24/703,412.28 = 283,354.80/x - Step 3: Cross multiply
509,688.24x = 703,412.28 × 283,354.80 - Step 4: Simplify right side
509,688.24x = 199,315,245,916.94 - Step 5: Solve for x
x = 199,315,245,916.94/509,688.24 - Step 6: Final answer
x = 391,053.26
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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.