Finding the Fourth Proportional to 663,262.74, 915,302.61 and 361,456.50
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Solution
The fourth proportional to 663,262.74, 915,302.61 and 361,456.50 is: 498,809.99
Step by Step Solution
- Step 1: Write the proportion equation
663,262.74 : 915,302.61 = 361,456.50 : x - Step 2: Convert to fraction form
663,262.74/915,302.61 = 361,456.50/x - Step 3: Cross multiply
663,262.74x = 915,302.61 × 361,456.50 - Step 4: Simplify right side
663,262.74x = 330,842,077,851.47 - Step 5: Solve for x
x = 330,842,077,851.47/663,262.74 - Step 6: Final answer
x = 498,809.99
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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.