Finding the Fourth Proportional to 521,991.59, 720,398.95 and 292,587.84
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Solution
The fourth proportional to 521,991.59, 720,398.95 and 292,587.84 is: 403,799.56
Step by Step Solution
- Step 1: Write the proportion equation
521,991.59 : 720,398.95 = 292,587.84 : x - Step 2: Convert to fraction form
521,991.59/720,398.95 = 292,587.84/x - Step 3: Cross multiply
521,991.59x = 720,398.95 × 292,587.84 - Step 4: Simplify right side
521,991.59x = 210,779,971,987.30 - Step 5: Solve for x
x = 210,779,971,987.30/521,991.59 - Step 6: Final answer
x = 403,799.56
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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.