Finding the Fourth Proportional to 977,438.10, 1,466,412.30 and 378,418.80
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Solution
The fourth proportional to 977,438.10, 1,466,412.30 and 378,418.80 is: 567,726.98
Step by Step Solution
- Step 1: Write the proportion equation
977,438.10 : 1,466,412.30 = 378,418.80 : x - Step 2: Convert to fraction form
977,438.10/1,466,412.30 = 378,418.80/x - Step 3: Cross multiply
977,438.10x = 1,466,412.30 × 378,418.80 - Step 4: Simplify right side
977,438.10x = 554,917,982,871.24 - Step 5: Solve for x
x = 554,917,982,871.24/977,438.10 - Step 6: Final answer
x = 567,726.98
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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.