Finding the Fourth Proportional to 577,539.28, 862,078.76 and 509,363.20
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Solution
The fourth proportional to 577,539.28, 862,078.76 and 509,363.20 is: 760,313.99
Step by Step Solution
- Step 1: Write the proportion equation
577,539.28 : 862,078.76 = 509,363.20 : x - Step 2: Convert to fraction form
577,539.28/862,078.76 = 509,363.20/x - Step 3: Cross multiply
577,539.28x = 862,078.76 × 509,363.20 - Step 4: Simplify right side
577,539.28x = 439,111,195,845.63 - Step 5: Solve for x
x = 439,111,195,845.63/577,539.28 - Step 6: Final answer
x = 760,313.99
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.