Finding the Fourth Proportional to 687,476.36, 948,703.10 and 381,534.97
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Solution
The fourth proportional to 687,476.36, 948,703.10 and 381,534.97 is: 526,510.34
Step by Step Solution
- Step 1: Write the proportion equation
687,476.36 : 948,703.10 = 381,534.97 : x - Step 2: Convert to fraction form
687,476.36/948,703.10 = 381,534.97/x - Step 3: Cross multiply
687,476.36x = 948,703.10 × 381,534.97 - Step 4: Simplify right side
687,476.36x = 361,963,408,797.41 - Step 5: Solve for x
x = 361,963,408,797.41/687,476.36 - Step 6: Final answer
x = 526,510.34
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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.