Finding the Fourth Proportional to 487,295.74, 672,433.98 and 283,332.18
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Solution
The fourth proportional to 487,295.74, 672,433.98 and 283,332.18 is: 390,978.56
Step by Step Solution
- Step 1: Write the proportion equation
487,295.74 : 672,433.98 = 283,332.18 : x - Step 2: Convert to fraction form
487,295.74/672,433.98 = 283,332.18/x - Step 3: Cross multiply
487,295.74x = 672,433.98 × 283,332.18 - Step 4: Simplify right side
487,295.74x = 190,522,185,459.48 - Step 5: Solve for x
x = 190,522,185,459.48/487,295.74 - Step 6: Final answer
x = 390,978.56
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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.