Finding the Fourth Proportional to 1,036,122.84, 1,555,069.95 and 405,479.52
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Solution
The fourth proportional to 1,036,122.84, 1,555,069.95 and 405,479.52 is: 608,565.89
Step by Step Solution
- Step 1: Write the proportion equation
1,036,122.84 : 1,555,069.95 = 405,479.52 : x - Step 2: Convert to fraction form
1,036,122.84/1,555,069.95 = 405,479.52/x - Step 3: Cross multiply
1,036,122.84x = 1,555,069.95 × 405,479.52 - Step 4: Simplify right side
1,036,122.84x = 630,549,016,892.42 - Step 5: Solve for x
x = 630,549,016,892.42/1,036,122.84 - Step 6: Final answer
x = 608,565.89
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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.