Finding the Fourth Proportional to 423,709.65, 634,973.99 and 318,405.60
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Solution
The fourth proportional to 423,709.65, 634,973.99 and 318,405.60 is: 477,164.66
Step by Step Solution
- Step 1: Write the proportion equation
423,709.65 : 634,973.99 = 318,405.60 : x - Step 2: Convert to fraction form
423,709.65/634,973.99 = 318,405.60/x - Step 3: Cross multiply
423,709.65x = 634,973.99 × 318,405.60 - Step 4: Simplify right side
423,709.65x = 202,179,272,678.32 - Step 5: Solve for x
x = 202,179,272,678.32/423,709.65 - Step 6: Final answer
x = 477,164.66
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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.