Finding the Fourth Proportional to 709,831.84, 979,562.88 and 387,541.92
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Solution
The fourth proportional to 709,831.84, 979,562.88 and 387,541.92 is: 534,805.09
Step by Step Solution
- Step 1: Write the proportion equation
709,831.84 : 979,562.88 = 387,541.92 : x - Step 2: Convert to fraction form
709,831.84/979,562.88 = 387,541.92/x - Step 3: Cross multiply
709,831.84x = 979,562.88 × 387,541.92 - Step 4: Simplify right side
709,831.84x = 379,621,679,275.93 - Step 5: Solve for x
x = 379,621,679,275.93/709,831.84 - Step 6: Final answer
x = 534,805.09
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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.