Finding the Fourth Proportional to 861,031.24, 1,188,204.58 and 498,470.44
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Solution
The fourth proportional to 861,031.24, 1,188,204.58 and 498,470.44 is: 687,878.48
Step by Step Solution
- Step 1: Write the proportion equation
861,031.24 : 1,188,204.58 = 498,470.44 : x - Step 2: Convert to fraction form
861,031.24/1,188,204.58 = 498,470.44/x - Step 3: Cross multiply
861,031.24x = 1,188,204.58 × 498,470.44 - Step 4: Simplify right side
861,031.24x = 592,284,859,802.62 - Step 5: Solve for x
x = 592,284,859,802.62/861,031.24 - Step 6: Final answer
x = 687,878.48
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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.