Finding the Fourth Proportional to 1,643,106.18, 2,462,512.08 and 1,189,225.65
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Solution
The fourth proportional to 1,643,106.18, 2,462,512.08 and 1,189,225.65 is: 1,782,284.41
Step by Step Solution
- Step 1: Write the proportion equation
1,643,106.18 : 2,462,512.08 = 1,189,225.65 : x - Step 2: Convert to fraction form
1,643,106.18/2,462,512.08 = 1,189,225.65/x - Step 3: Cross multiply
1,643,106.18x = 2,462,512.08 × 1,189,225.65 - Step 4: Simplify right side
1,643,106.18x = 2,928,482,528,970.85 - Step 5: Solve for x
x = 2,928,482,528,970.85/1,643,106.18 - Step 6: Final answer
x = 1,782,284.41
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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.