Finding the Fourth Proportional to 1,405,317.60, 2,107,660.80 and 646,430.12
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Solution
The fourth proportional to 1,405,317.60, 2,107,660.80 and 646,430.12 is: 969,500.01
Step by Step Solution
- Step 1: Write the proportion equation
1,405,317.60 : 2,107,660.80 = 646,430.12 : x - Step 2: Convert to fraction form
1,405,317.60/2,107,660.80 = 646,430.12/x - Step 3: Cross multiply
1,405,317.60x = 2,107,660.80 × 646,430.12 - Step 4: Simplify right side
1,405,317.60x = 1,362,455,423,652.83 - Step 5: Solve for x
x = 1,362,455,423,652.83/1,405,317.60 - Step 6: Final answer
x = 969,500.01
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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.