Finding the Fourth Proportional to 884,831.28, 1,221,031.99 and 522,371.90
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Solution
The fourth proportional to 884,831.28, 1,221,031.99 and 522,371.90 is: 720,852.45
Step by Step Solution
- Step 1: Write the proportion equation
884,831.28 : 1,221,031.99 = 522,371.90 : x - Step 2: Convert to fraction form
884,831.28/1,221,031.99 = 522,371.90/x - Step 3: Cross multiply
884,831.28x = 1,221,031.99 × 522,371.90 - Step 4: Simplify right side
884,831.28x = 637,832,794,471.92 - Step 5: Solve for x
x = 637,832,794,471.92/884,831.28 - Step 6: Final answer
x = 720,852.45
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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.