Finding the Fourth Proportional to 817,720.07, 1,226,831.36 and 418,640.99
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Solution
The fourth proportional to 817,720.07, 1,226,831.36 and 418,640.99 is: 628,090.11
Step by Step Solution
- Step 1: Write the proportion equation
817,720.07 : 1,226,831.36 = 418,640.99 : x - Step 2: Convert to fraction form
817,720.07/1,226,831.36 = 418,640.99/x - Step 3: Cross multiply
817,720.07x = 1,226,831.36 × 418,640.99 - Step 4: Simplify right side
817,720.07x = 513,601,886,886.09 - Step 5: Solve for x
x = 513,601,886,886.09/817,720.07 - Step 6: Final answer
x = 628,090.11
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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.