Finding the Fourth Proportional to 1,129,515.34, 1,693,830.21 and 409,685.62
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Solution
The fourth proportional to 1,129,515.34, 1,693,830.21 and 409,685.62 is: 614,367.82
Step by Step Solution
- Step 1: Write the proportion equation
1,129,515.34 : 1,693,830.21 = 409,685.62 : x - Step 2: Convert to fraction form
1,129,515.34/1,693,830.21 = 409,685.62/x - Step 3: Cross multiply
1,129,515.34x = 1,693,830.21 × 409,685.62 - Step 4: Simplify right side
1,129,515.34x = 693,937,879,758.58 - Step 5: Solve for x
x = 693,937,879,758.58/1,129,515.34 - Step 6: Final answer
x = 614,367.82
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.