Finding the Fourth Proportional to 663,291.99, 915,346.05 and 376,827.80
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Solution
The fourth proportional to 663,291.99, 915,346.05 and 376,827.80 is: 520,024.12
Step by Step Solution
- Step 1: Write the proportion equation
663,291.99 : 915,346.05 = 376,827.80 : x - Step 2: Convert to fraction form
663,291.99/915,346.05 = 376,827.80/x - Step 3: Cross multiply
663,291.99x = 915,346.05 × 376,827.80 - Step 4: Simplify right side
663,291.99x = 344,927,835,736.31 - Step 5: Solve for x
x = 344,927,835,736.31/663,291.99 - Step 6: Final answer
x = 520,024.12
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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.