Finding the Fourth Proportional to 2,163,862.60, 2,985,870.18 and 1,246,390.16
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Solution
The fourth proportional to 2,163,862.60, 2,985,870.18 and 1,246,390.16 is: 1,719,868.54
Step by Step Solution
- Step 1: Write the proportion equation
2,163,862.60 : 2,985,870.18 = 1,246,390.16 : x - Step 2: Convert to fraction form
2,163,862.60/2,985,870.18 = 1,246,390.16/x - Step 3: Cross multiply
2,163,862.60x = 2,985,870.18 × 1,246,390.16 - Step 4: Simplify right side
2,163,862.60x = 3,721,559,211,389.43 - Step 5: Solve for x
x = 3,721,559,211,389.43/2,163,862.60 - Step 6: Final answer
x = 1,719,868.54
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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.