Finding the Fourth Proportional to 1,615,934.32, 2,230,004.90 and 890,807.99
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Solution
The fourth proportional to 1,615,934.32, 2,230,004.90 and 890,807.99 is: 1,229,323.59
Step by Step Solution
- Step 1: Write the proportion equation
1,615,934.32 : 2,230,004.90 = 890,807.99 : x - Step 2: Convert to fraction form
1,615,934.32/2,230,004.90 = 890,807.99/x - Step 3: Cross multiply
1,615,934.32x = 2,230,004.90 × 890,807.99 - Step 4: Simplify right side
1,615,934.32x = 1,986,506,173,736.15 - Step 5: Solve for x
x = 1,986,506,173,736.15/1,615,934.32 - Step 6: Final answer
x = 1,229,323.59
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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.