Finding the Fourth Proportional to 791,261.80, 1,185,465.68 and 487,126.65
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Solution
The fourth proportional to 791,261.80, 1,185,465.68 and 487,126.65 is: 729,811.45
Step by Step Solution
- Step 1: Write the proportion equation
791,261.80 : 1,185,465.68 = 487,126.65 : x - Step 2: Convert to fraction form
791,261.80/1,185,465.68 = 487,126.65/x - Step 3: Cross multiply
791,261.80x = 1,185,465.68 × 487,126.65 - Step 4: Simplify right side
791,261.80x = 577,471,920,678.86 - Step 5: Solve for x
x = 577,471,920,678.86/791,261.80 - Step 6: Final answer
x = 729,811.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.