Finding the Fourth Proportional to 1,121,927.76, 1,681,645.05 and 854,807.58
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Solution
The fourth proportional to 1,121,927.76, 1,681,645.05 and 854,807.58 is: 1,281,261.58
Step by Step Solution
- Step 1: Write the proportion equation
1,121,927.76 : 1,681,645.05 = 854,807.58 : x - Step 2: Convert to fraction form
1,121,927.76/1,681,645.05 = 854,807.58/x - Step 3: Cross multiply
1,121,927.76x = 1,681,645.05 × 854,807.58 - Step 4: Simplify right side
1,121,927.76x = 1,437,482,935,609.48 - Step 5: Solve for x
x = 1,437,482,935,609.48/1,121,927.76 - Step 6: Final answer
x = 1,281,261.58
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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.