Finding the Fourth Proportional to 1,418,318.99, 1,957,012.52 and 845,412.47
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Solution
The fourth proportional to 1,418,318.99, 1,957,012.52 and 845,412.47 is: 1,166,509.65
Step by Step Solution
- Step 1: Write the proportion equation
1,418,318.99 : 1,957,012.52 = 845,412.47 : x - Step 2: Convert to fraction form
1,418,318.99/1,957,012.52 = 845,412.47/x - Step 3: Cross multiply
1,418,318.99x = 1,957,012.52 × 845,412.47 - Step 4: Simplify right side
1,418,318.99x = 1,654,482,788,354.12 - Step 5: Solve for x
x = 1,654,482,788,354.12/1,418,318.99 - Step 6: Final answer
x = 1,166,509.65
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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.