Finding the Fourth Proportional to 898,452.78, 1,239,417.42 and 535,621.02
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Solution
The fourth proportional to 898,452.78, 1,239,417.42 and 535,621.02 is: 738,890.28
Step by Step Solution
- Step 1: Write the proportion equation
898,452.78 : 1,239,417.42 = 535,621.02 : x - Step 2: Convert to fraction form
898,452.78/1,239,417.42 = 535,621.02/x - Step 3: Cross multiply
898,452.78x = 1,239,417.42 × 535,621.02 - Step 4: Simplify right side
898,452.78x = 663,858,022,706.17 - Step 5: Solve for x
x = 663,858,022,706.17/898,452.78 - Step 6: Final answer
x = 738,890.28
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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.