Finding the Fourth Proportional to 791,971.35, 1,187,432.25 and 286,465.80
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Solution
The fourth proportional to 791,971.35, 1,187,432.25 and 286,465.80 is: 429,508.88
Step by Step Solution
- Step 1: Write the proportion equation
791,971.35 : 1,187,432.25 = 286,465.80 : x - Step 2: Convert to fraction form
791,971.35/1,187,432.25 = 286,465.80/x - Step 3: Cross multiply
791,971.35x = 1,187,432.25 × 286,465.80 - Step 4: Simplify right side
791,971.35x = 340,158,729,442.05 - Step 5: Solve for x
x = 340,158,729,442.05/791,971.35 - Step 6: Final answer
x = 429,508.88
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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.