Finding the Fourth Proportional to 528,101.24, 728,779.88 and 286,383.74
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Solution
The fourth proportional to 528,101.24, 728,779.88 and 286,383.74 is: 395,209.65
Step by Step Solution
- Step 1: Write the proportion equation
528,101.24 : 728,779.88 = 286,383.74 : x - Step 2: Convert to fraction form
528,101.24/728,779.88 = 286,383.74/x - Step 3: Cross multiply
528,101.24x = 728,779.88 × 286,383.74 - Step 4: Simplify right side
528,101.24x = 208,710,702,595.33 - Step 5: Solve for x
x = 208,710,702,595.33/528,101.24 - Step 6: Final answer
x = 395,209.65
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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.