Finding the Fourth Proportional to 788,820.18, 1,088,658.36 and 457,749.06
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Solution
The fourth proportional to 788,820.18, 1,088,658.36 and 457,749.06 is: 631,743.91
Step by Step Solution
- Step 1: Write the proportion equation
788,820.18 : 1,088,658.36 = 457,749.06 : x - Step 2: Convert to fraction form
788,820.18/1,088,658.36 = 457,749.06/x - Step 3: Cross multiply
788,820.18x = 1,088,658.36 × 457,749.06 - Step 4: Simplify right side
788,820.18x = 498,332,340,951.14 - Step 5: Solve for x
x = 498,332,340,951.14/788,820.18 - Step 6: Final answer
x = 631,743.91
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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.