Finding the Fourth Proportional to 740,122.08, 1,021,393.20 and 453,586.80
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Solution
The fourth proportional to 740,122.08, 1,021,393.20 and 453,586.80 is: 625,964.94
Step by Step Solution
- Step 1: Write the proportion equation
740,122.08 : 1,021,393.20 = 453,586.80 : x - Step 2: Convert to fraction form
740,122.08/1,021,393.20 = 453,586.80/x - Step 3: Cross multiply
740,122.08x = 1,021,393.20 × 453,586.80 - Step 4: Simplify right side
740,122.08x = 463,290,473,129.76 - Step 5: Solve for x
x = 463,290,473,129.76/740,122.08 - Step 6: Final answer
x = 625,964.94
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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.