Finding the Fourth Proportional to 509,298.68, 702,831.99 and 279,870.75
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Solution
The fourth proportional to 509,298.68, 702,831.99 and 279,870.75 is: 386,221.53
Step by Step Solution
- Step 1: Write the proportion equation
509,298.68 : 702,831.99 = 279,870.75 : x - Step 2: Convert to fraction form
509,298.68/702,831.99 = 279,870.75/x - Step 3: Cross multiply
509,298.68x = 702,831.99 × 279,870.75 - Step 4: Simplify right side
509,298.68x = 196,702,116,165.29 - Step 5: Solve for x
x = 196,702,116,165.29/509,298.68 - Step 6: Final answer
x = 386,221.53
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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.