Finding the Fourth Proportional to 903,356.84, 1,243,503.60 and 780,793.40
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Solution
The fourth proportional to 903,356.84, 1,243,503.60 and 780,793.40 is: 1,074,790.56
Step by Step Solution
- Step 1: Write the proportion equation
903,356.84 : 1,243,503.60 = 780,793.40 : x - Step 2: Convert to fraction form
903,356.84/1,243,503.60 = 780,793.40/x - Step 3: Cross multiply
903,356.84x = 1,243,503.60 × 780,793.40 - Step 4: Simplify right side
903,356.84x = 970,919,403,756.24 - Step 5: Solve for x
x = 970,919,403,756.24/903,356.84 - Step 6: Final answer
x = 1,074,790.56
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.