Finding the Fourth Proportional to 1,439,157.78, 2,158,588.74 and 479,509.74
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Solution
The fourth proportional to 1,439,157.78, 2,158,588.74 and 479,509.74 is: 719,215.32
Step by Step Solution
- Step 1: Write the proportion equation
1,439,157.78 : 2,158,588.74 = 479,509.74 : x - Step 2: Convert to fraction form
1,439,157.78/2,158,588.74 = 479,509.74/x - Step 3: Cross multiply
1,439,157.78x = 2,158,588.74 × 479,509.74 - Step 4: Simplify right side
1,439,157.78x = 1,035,064,324,585.25 - Step 5: Solve for x
x = 1,035,064,324,585.25/1,439,157.78 - Step 6: Final answer
x = 719,215.32
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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.