Finding the Fourth Proportional to 519,809.90, 717,261.35 and 290,338.92
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Solution
The fourth proportional to 519,809.90, 717,261.35 and 290,338.92 is: 400,625.09
Step by Step Solution
- Step 1: Write the proportion equation
519,809.90 : 717,261.35 = 290,338.92 : x - Step 2: Convert to fraction form
519,809.90/717,261.35 = 290,338.92/x - Step 3: Cross multiply
519,809.90x = 717,261.35 × 290,338.92 - Step 4: Simplify right side
519,809.90x = 208,248,884,265.05 - Step 5: Solve for x
x = 208,248,884,265.05/519,809.90 - Step 6: Final answer
x = 400,625.09
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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.