Finding the Fourth Proportional to 778,727.58, 1,074,873.88 and 456,507.42
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Solution
The fourth proportional to 778,727.58, 1,074,873.88 and 456,507.42 is: 630,114.96
Step by Step Solution
- Step 1: Write the proportion equation
778,727.58 : 1,074,873.88 = 456,507.42 : x - Step 2: Convert to fraction form
778,727.58/1,074,873.88 = 456,507.42/x - Step 3: Cross multiply
778,727.58x = 1,074,873.88 × 456,507.42 - Step 4: Simplify right side
778,727.58x = 490,687,901,784.19 - Step 5: Solve for x
x = 490,687,901,784.19/778,727.58 - Step 6: Final answer
x = 630,114.96
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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.