Finding the Fourth Proportional to 2,129,482.28, 2,938,640.64 and 1,162,565.84
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Solution
The fourth proportional to 2,129,482.28, 2,938,640.64 and 1,162,565.84 is: 1,604,316.34
Step by Step Solution
- Step 1: Write the proportion equation
2,129,482.28 : 2,938,640.64 = 1,162,565.84 : x - Step 2: Convert to fraction form
2,129,482.28/2,938,640.64 = 1,162,565.84/x - Step 3: Cross multiply
2,129,482.28x = 2,938,640.64 × 1,162,565.84 - Step 4: Simplify right side
2,129,482.28x = 3,416,363,224,099.74 - Step 5: Solve for x
x = 3,416,363,224,099.74/2,129,482.28 - Step 6: Final answer
x = 1,604,316.34
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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.