Finding the Fourth Proportional to 1,245,595.70, 1,868,106.80 and 487,455.14
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Solution
The fourth proportional to 1,245,595.70, 1,868,106.80 and 487,455.14 is: 731,070.49
Step by Step Solution
- Step 1: Write the proportion equation
1,245,595.70 : 1,868,106.80 = 487,455.14 : x - Step 2: Convert to fraction form
1,245,595.70/1,868,106.80 = 487,455.14/x - Step 3: Cross multiply
1,245,595.70x = 1,868,106.80 × 487,455.14 - Step 4: Simplify right side
1,245,595.70x = 910,618,261,728.95 - Step 5: Solve for x
x = 910,618,261,728.95/1,245,595.70 - Step 6: Final answer
x = 731,070.49
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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.