Finding the Fourth Proportional to 566,272.28, 781,455.91 and 311,623.47
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Solution
The fourth proportional to 566,272.28, 781,455.91 and 311,623.47 is: 430,040.48
Step by Step Solution
- Step 1: Write the proportion equation
566,272.28 : 781,455.91 = 311,623.47 : x - Step 2: Convert to fraction form
566,272.28/781,455.91 = 311,623.47/x - Step 3: Cross multiply
566,272.28x = 781,455.91 × 311,623.47 - Step 4: Simplify right side
566,272.28x = 243,520,002,326.21 - Step 5: Solve for x
x = 243,520,002,326.21/566,272.28 - Step 6: Final answer
x = 430,040.48
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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.