Finding the Fourth Proportional to 750,301.80, 1,125,452.70 and 661,728.30
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Solution
The fourth proportional to 750,301.80, 1,125,452.70 and 661,728.30 is: 992,592.45
Step by Step Solution
- Step 1: Write the proportion equation
750,301.80 : 1,125,452.70 = 661,728.30 : x - Step 2: Convert to fraction form
750,301.80/1,125,452.70 = 661,728.30/x - Step 3: Cross multiply
750,301.80x = 1,125,452.70 × 661,728.30 - Step 4: Simplify right side
750,301.80x = 744,743,901,901.41 - Step 5: Solve for x
x = 744,743,901,901.41/750,301.80 - Step 6: Final answer
x = 992,592.45
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1.5x scale
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.