Finding the Fourth Proportional to 935,858.18, 1,291,485.15 and 506,138.28
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Solution
The fourth proportional to 935,858.18, 1,291,485.15 and 506,138.28 is: 698,471.30
Step by Step Solution
- Step 1: Write the proportion equation
935,858.18 : 1,291,485.15 = 506,138.28 : x - Step 2: Convert to fraction form
935,858.18/1,291,485.15 = 506,138.28/x - Step 3: Cross multiply
935,858.18x = 1,291,485.15 × 506,138.28 - Step 4: Simplify right side
935,858.18x = 653,670,072,466.54 - Step 5: Solve for x
x = 653,670,072,466.54/935,858.18 - Step 6: Final answer
x = 698,471.30
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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.