Finding the Fourth Proportional to 3,119,653.90, 4,681,036.05 and 1,772,850.70
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Solution
The fourth proportional to 3,119,653.90, 4,681,036.05 and 1,772,850.70 is: 2,660,159.85
Step by Step Solution
- Step 1: Write the proportion equation
3,119,653.90 : 4,681,036.05 = 1,772,850.70 : x - Step 2: Convert to fraction form
3,119,653.90/4,681,036.05 = 1,772,850.70/x - Step 3: Cross multiply
3,119,653.90x = 4,681,036.05 × 1,772,850.70 - Step 4: Simplify right side
3,119,653.90x = 8,298,778,037,967.74 - Step 5: Solve for x
x = 8,298,778,037,967.74/3,119,653.90 - Step 6: Final answer
x = 2,660,159.85
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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.