Finding the Fourth Proportional to 615,271.80, 922,907.70 and 457,807.80
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Solution
The fourth proportional to 615,271.80, 922,907.70 and 457,807.80 is: 686,711.70
Step by Step Solution
- Step 1: Write the proportion equation
615,271.80 : 922,907.70 = 457,807.80 : x - Step 2: Convert to fraction form
615,271.80/922,907.70 = 457,807.80/x - Step 3: Cross multiply
615,271.80x = 922,907.70 × 457,807.80 - Step 4: Simplify right side
615,271.80x = 422,514,343,740.06 - Step 5: Solve for x
x = 422,514,343,740.06/615,271.80 - Step 6: Final answer
x = 686,711.70
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Similar ratio
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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.