Finding the Fourth Proportional to 418,831.74, 628,610.36 and 219,291.75
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Solution
The fourth proportional to 418,831.74, 628,610.36 and 219,291.75 is: 329,127.55
Step by Step Solution
- Step 1: Write the proportion equation
418,831.74 : 628,610.36 = 219,291.75 : x - Step 2: Convert to fraction form
418,831.74/628,610.36 = 219,291.75/x - Step 3: Cross multiply
418,831.74x = 628,610.36 × 219,291.75 - Step 4: Simplify right side
418,831.74x = 137,849,064,816.07 - Step 5: Solve for x
x = 137,849,064,816.07/418,831.74 - Step 6: Final answer
x = 329,127.55
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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.