Finding the Fourth Proportional to 519,792.54, 717,337.58 and 287,252.18
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Solution
The fourth proportional to 519,792.54, 717,337.58 and 287,252.18 is: 396,421.20
Step by Step Solution
- Step 1: Write the proportion equation
519,792.54 : 717,337.58 = 287,252.18 : x - Step 2: Convert to fraction form
519,792.54/717,337.58 = 287,252.18/x - Step 3: Cross multiply
519,792.54x = 717,337.58 × 287,252.18 - Step 4: Simplify right side
519,792.54x = 206,056,783,650.92 - Step 5: Solve for x
x = 206,056,783,650.92/519,792.54 - Step 6: Final answer
x = 396,421.20
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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.