Finding the Fourth Proportional to 420,790.68, 630,810.36 and 154,489.32
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Solution
The fourth proportional to 420,790.68, 630,810.36 and 154,489.32 is: 231,596.06
Step by Step Solution
- Step 1: Write the proportion equation
420,790.68 : 630,810.36 = 154,489.32 : x - Step 2: Convert to fraction form
420,790.68/630,810.36 = 154,489.32/x - Step 3: Cross multiply
420,790.68x = 630,810.36 × 154,489.32 - Step 4: Simplify right side
420,790.68x = 97,453,463,565.36 - Step 5: Solve for x
x = 97,453,463,565.36/420,790.68 - Step 6: Final answer
x = 231,596.06
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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.