Finding the Fourth Proportional to 763,642.35, 1,053,792.34 and 457,887.49
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Solution
The fourth proportional to 763,642.35, 1,053,792.34 and 457,887.49 is: 631,864.28
Step by Step Solution
- Step 1: Write the proportion equation
763,642.35 : 1,053,792.34 = 457,887.49 : x - Step 2: Convert to fraction form
763,642.35/1,053,792.34 = 457,887.49/x - Step 3: Cross multiply
763,642.35x = 1,053,792.34 × 457,887.49 - Step 4: Simplify right side
763,642.35x = 482,518,325,764.63 - Step 5: Solve for x
x = 482,518,325,764.63/763,642.35 - Step 6: Final answer
x = 631,864.28
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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.