Finding the Fourth Proportional to 816,106.76, 1,126,139.46 and 453,448.70
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Solution
The fourth proportional to 816,106.76, 1,126,139.46 and 453,448.70 is: 625,710.38
Step by Step Solution
- Step 1: Write the proportion equation
816,106.76 : 1,126,139.46 = 453,448.70 : x - Step 2: Convert to fraction form
816,106.76/1,126,139.46 = 453,448.70/x - Step 3: Cross multiply
816,106.76x = 1,126,139.46 × 453,448.70 - Step 4: Simplify right side
816,106.76x = 510,646,474,155.70 - Step 5: Solve for x
x = 510,646,474,155.70/816,106.76 - Step 6: Final answer
x = 625,710.38
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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.