Finding the Fourth Proportional to 1,228,318.88, 1,695,132.50 and 684,455.31
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Solution
The fourth proportional to 1,228,318.88, 1,695,132.50 and 684,455.31 is: 944,577.55
Step by Step Solution
- Step 1: Write the proportion equation
1,228,318.88 : 1,695,132.50 = 684,455.31 : x - Step 2: Convert to fraction form
1,228,318.88/1,695,132.50 = 684,455.31/x - Step 3: Cross multiply
1,228,318.88x = 1,695,132.50 × 684,455.31 - Step 4: Simplify right side
1,228,318.88x = 1,160,242,437,356.30 - Step 5: Solve for x
x = 1,160,242,437,356.30/1,228,318.88 - Step 6: Final answer
x = 944,577.55
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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.