Finding the Fourth Proportional to 713,246.31, 984,275.45 and 390,969.99
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Solution
The fourth proportional to 713,246.31, 984,275.45 and 390,969.99 is: 539,536.14
Step by Step Solution
- Step 1: Write the proportion equation
713,246.31 : 984,275.45 = 390,969.99 : x - Step 2: Convert to fraction form
713,246.31/984,275.45 = 390,969.99/x - Step 3: Cross multiply
713,246.31x = 984,275.45 × 390,969.99 - Step 4: Simplify right side
713,246.31x = 384,822,162,355.03 - Step 5: Solve for x
x = 384,822,162,355.03/713,246.31 - Step 6: Final answer
x = 539,536.14
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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.