Finding the Fourth Proportional to 915,618.36, 1,263,530.70 and 507,721.80
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Solution
The fourth proportional to 915,618.36, 1,263,530.70 and 507,721.80 is: 700,643.53
Step by Step Solution
- Step 1: Write the proportion equation
915,618.36 : 1,263,530.70 = 507,721.80 : x - Step 2: Convert to fraction form
915,618.36/1,263,530.70 = 507,721.80/x - Step 3: Cross multiply
915,618.36x = 1,263,530.70 × 507,721.80 - Step 4: Simplify right side
915,618.36x = 641,522,081,359.26 - Step 5: Solve for x
x = 641,522,081,359.26/915,618.36 - Step 6: Final answer
x = 700,643.53
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.