Finding the Fourth Proportional to 1,121,909.08, 1,681,863.27 and 411,772.36
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Solution
The fourth proportional to 1,121,909.08, 1,681,863.27 and 411,772.36 is: 617,291.38
Step by Step Solution
- Step 1: Write the proportion equation
1,121,909.08 : 1,681,863.27 = 411,772.36 : x - Step 2: Convert to fraction form
1,121,909.08/1,681,863.27 = 411,772.36/x - Step 3: Cross multiply
1,121,909.08x = 1,681,863.27 × 411,772.36 - Step 4: Simplify right side
1,121,909.08x = 692,544,807,885.22 - Step 5: Solve for x
x = 692,544,807,885.22/1,121,909.08 - Step 6: Final answer
x = 617,291.38
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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.