Finding the Fourth Proportional to 415,862.80, 623,794.20 and 372,317.20
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Solution
The fourth proportional to 415,862.80, 623,794.20 and 372,317.20 is: 558,475.80
Step by Step Solution
- Step 1: Write the proportion equation
415,862.80 : 623,794.20 = 372,317.20 : x - Step 2: Convert to fraction form
415,862.80/623,794.20 = 372,317.20/x - Step 3: Cross multiply
415,862.80x = 623,794.20 × 372,317.20 - Step 4: Simplify right side
415,862.80x = 232,249,309,920.24 - Step 5: Solve for x
x = 232,249,309,920.24/415,862.80 - Step 6: Final answer
x = 558,475.80
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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.