Finding the Fourth Proportional to 559,686.12, 772,344.36 and 305,031.84
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Solution
The fourth proportional to 559,686.12, 772,344.36 and 305,031.84 is: 420,931.68
Step by Step Solution
- Step 1: Write the proportion equation
559,686.12 : 772,344.36 = 305,031.84 : x - Step 2: Convert to fraction form
559,686.12/772,344.36 = 305,031.84/x - Step 3: Cross multiply
559,686.12x = 772,344.36 × 305,031.84 - Step 4: Simplify right side
559,686.12x = 235,589,621,244.42 - Step 5: Solve for x
x = 235,589,621,244.42/559,686.12 - Step 6: Final answer
x = 420,931.68
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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.