Finding the Fourth Proportional to 478,610.19, 660,479.18 and 260,818.38
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Solution
The fourth proportional to 478,610.19, 660,479.18 and 260,818.38 is: 359,927.79
Step by Step Solution
- Step 1: Write the proportion equation
478,610.19 : 660,479.18 = 260,818.38 : x - Step 2: Convert to fraction form
478,610.19/660,479.18 = 260,818.38/x - Step 3: Cross multiply
478,610.19x = 660,479.18 × 260,818.38 - Step 4: Simplify right side
478,610.19x = 172,265,108,447.24 - Step 5: Solve for x
x = 172,265,108,447.24/478,610.19 - Step 6: Final answer
x = 359,927.79
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1.5x scale
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.