Finding the Fourth Proportional to 897,902.90, 1,239,132.12 and 490,030.97
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Solution
The fourth proportional to 897,902.90, 1,239,132.12 and 490,030.97 is: 676,256.99
Step by Step Solution
- Step 1: Write the proportion equation
897,902.90 : 1,239,132.12 = 490,030.97 : x - Step 2: Convert to fraction form
897,902.90/1,239,132.12 = 490,030.97/x - Step 3: Cross multiply
897,902.90x = 1,239,132.12 × 490,030.97 - Step 4: Simplify right side
897,902.90x = 607,213,112,271.60 - Step 5: Solve for x
x = 607,213,112,271.60/897,902.90 - Step 6: Final answer
x = 676,256.99
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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.