Finding the Fourth Proportional to 509,433.09, 703,024.94 and 280,011.59
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Solution
The fourth proportional to 509,433.09, 703,024.94 and 280,011.59 is: 386,419.99
Step by Step Solution
- Step 1: Write the proportion equation
509,433.09 : 703,024.94 = 280,011.59 : x - Step 2: Convert to fraction form
509,433.09/703,024.94 = 280,011.59/x - Step 3: Cross multiply
509,433.09x = 703,024.94 × 280,011.59 - Step 4: Simplify right side
509,433.09x = 196,855,130,030.26 - Step 5: Solve for x
x = 196,855,130,030.26/509,433.09 - Step 6: Final answer
x = 386,419.99
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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.