Finding the Fourth Proportional to 740,028.20, 1,110,560.70 and 319,605.80
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Solution
The fourth proportional to 740,028.20, 1,110,560.70 and 319,605.80 is: 479,632.59
Step by Step Solution
- Step 1: Write the proportion equation
740,028.20 : 1,110,560.70 = 319,605.80 : x - Step 2: Convert to fraction form
740,028.20/1,110,560.70 = 319,605.80/x - Step 3: Cross multiply
740,028.20x = 1,110,560.70 × 319,605.80 - Step 4: Simplify right side
740,028.20x = 354,941,640,972.06 - Step 5: Solve for x
x = 354,941,640,972.06/740,028.20 - Step 6: Final answer
x = 479,632.59
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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.