Finding the Fourth Proportional to 1,228,461.12, 1,695,277.98 and 684,585
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Solution
The fourth proportional to 1,228,461.12, 1,695,277.98 and 684,585 is: 944,728.21
Step by Step Solution
- Step 1: Write the proportion equation
1,228,461.12 : 1,695,277.98 = 684,585 : x - Step 2: Convert to fraction form
1,228,461.12/1,695,277.98 = 684,585/x - Step 3: Cross multiply
1,228,461.12x = 1,695,277.98 × 684,585 - Step 4: Simplify right side
1,228,461.12x = 1,160,561,875,938.30 - Step 5: Solve for x
x = 1,160,561,875,938.30/1,228,461.12 - Step 6: Final answer
x = 944,728.21
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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.