Finding the Fourth Proportional to 772,394.19, 1,158,432.89 and 292,456.43
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Solution
The fourth proportional to 772,394.19, 1,158,432.89 and 292,456.43 is: 438,624.66
Step by Step Solution
- Step 1: Write the proportion equation
772,394.19 : 1,158,432.89 = 292,456.43 : x - Step 2: Convert to fraction form
772,394.19/1,158,432.89 = 292,456.43/x - Step 3: Cross multiply
772,394.19x = 1,158,432.89 × 292,456.43 - Step 4: Simplify right side
772,394.19x = 338,791,140,149.54 - Step 5: Solve for x
x = 338,791,140,149.54/772,394.19 - Step 6: Final answer
x = 438,624.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.