Finding the Fourth Proportional to 432,438.21, 596,436.35 and 372,109.95
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Solution
The fourth proportional to 432,438.21, 596,436.35 and 372,109.95 is: 513,229.16
Step by Step Solution
- Step 1: Write the proportion equation
432,438.21 : 596,436.35 = 372,109.95 : x - Step 2: Convert to fraction form
432,438.21/596,436.35 = 372,109.95/x - Step 3: Cross multiply
432,438.21x = 596,436.35 × 372,109.95 - Step 4: Simplify right side
432,438.21x = 221,939,898,516.13 - Step 5: Solve for x
x = 221,939,898,516.13/432,438.21 - Step 6: Final answer
x = 513,229.16
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1.5x scale
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.