Finding the Fourth Proportional to 986,826.18, 1,361,831.64 and 578,935.02
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Solution
The fourth proportional to 986,826.18, 1,361,831.64 and 578,935.02 is: 798,937.08
Step by Step Solution
- Step 1: Write the proportion equation
986,826.18 : 1,361,831.64 = 578,935.02 : x - Step 2: Convert to fraction form
986,826.18/1,361,831.64 = 578,935.02/x - Step 3: Cross multiply
986,826.18x = 1,361,831.64 × 578,935.02 - Step 4: Simplify right side
986,826.18x = 788,412,027,740.03 - Step 5: Solve for x
x = 788,412,027,740.03/986,826.18 - Step 6: Final answer
x = 798,937.08
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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.