Finding the Fourth Proportional to 623,259.05, 860,497.71 and 391,004.35
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Solution
The fourth proportional to 623,259.05, 860,497.71 and 391,004.35 is: 539,837.09
Step by Step Solution
- Step 1: Write the proportion equation
623,259.05 : 860,497.71 = 391,004.35 : x - Step 2: Convert to fraction form
623,259.05/860,497.71 = 391,004.35/x - Step 3: Cross multiply
623,259.05x = 860,497.71 × 391,004.35 - Step 4: Simplify right side
623,259.05x = 336,458,347,384.39 - Step 5: Solve for x
x = 336,458,347,384.39/623,259.05 - Step 6: Final answer
x = 539,837.09
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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.