Finding the Fourth Proportional to 528,177.98, 728,885.96 and 286,460.48
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Solution
The fourth proportional to 528,177.98, 728,885.96 and 286,460.48 is: 395,315.65
Step by Step Solution
- Step 1: Write the proportion equation
528,177.98 : 728,885.96 = 286,460.48 : x - Step 2: Convert to fraction form
528,177.98/728,885.96 = 286,460.48/x - Step 3: Cross multiply
528,177.98x = 728,885.96 × 286,460.48 - Step 4: Simplify right side
528,177.98x = 208,797,023,431.00 - Step 5: Solve for x
x = 208,797,023,431.00/528,177.98 - Step 6: Final answer
x = 395,315.65
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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.