Finding the Fourth Proportional to 509,688.19, 703,387.77 and 280,262.96
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Solution
The fourth proportional to 509,688.19, 703,387.77 and 280,262.96 is: 386,772.82
Step by Step Solution
- Step 1: Write the proportion equation
509,688.19 : 703,387.77 = 280,262.96 : x - Step 2: Convert to fraction form
509,688.19/703,387.77 = 280,262.96/x - Step 3: Cross multiply
509,688.19x = 703,387.77 × 280,262.96 - Step 4: Simplify right side
509,688.19x = 197,133,534,931.06 - Step 5: Solve for x
x = 197,133,534,931.06/509,688.19 - Step 6: Final answer
x = 386,772.82
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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.