Finding the Fourth Proportional to 915,354.84, 1,373,123.26 and 339,132.28
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Solution
The fourth proportional to 915,354.84, 1,373,123.26 and 339,132.28 is: 508,732.13
Step by Step Solution
- Step 1: Write the proportion equation
915,354.84 : 1,373,123.26 = 339,132.28 : x - Step 2: Convert to fraction form
915,354.84/1,373,123.26 = 339,132.28/x - Step 3: Cross multiply
915,354.84x = 1,373,123.26 × 339,132.28 - Step 4: Simplify right side
915,354.84x = 465,670,421,884.83 - Step 5: Solve for x
x = 465,670,421,884.83/915,354.84 - Step 6: Final answer
x = 508,732.13
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.