Finding the Fourth Proportional to 1,038,963.85, 1,555,630.62 and 539,278.09
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Solution
The fourth proportional to 1,038,963.85, 1,555,630.62 and 539,278.09 is: 807,455.92
Step by Step Solution
- Step 1: Write the proportion equation
1,038,963.85 : 1,555,630.62 = 539,278.09 : x - Step 2: Convert to fraction form
1,038,963.85/1,555,630.62 = 539,278.09/x - Step 3: Cross multiply
1,038,963.85x = 1,555,630.62 × 539,278.09 - Step 4: Simplify right side
1,038,963.85x = 838,917,509,499.12 - Step 5: Solve for x
x = 838,917,509,499.12/1,038,963.85 - Step 6: Final answer
x = 807,455.92
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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.