Finding the Fourth Proportional to 1,421,204.66, 1,961,288.08 and 776,652.02
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Solution
The fourth proportional to 1,421,204.66, 1,961,288.08 and 776,652.02 is: 1,071,793.80
Step by Step Solution
- Step 1: Write the proportion equation
1,421,204.66 : 1,961,288.08 = 776,652.02 : x - Step 2: Convert to fraction form
1,421,204.66/1,961,288.08 = 776,652.02/x - Step 3: Cross multiply
1,421,204.66x = 1,961,288.08 × 776,652.02 - Step 4: Simplify right side
1,421,204.66x = 1,523,238,339,327.48 - Step 5: Solve for x
x = 1,523,238,339,327.48/1,421,204.66 - Step 6: Final answer
x = 1,071,793.80
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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.