Finding the Fourth Proportional to 417,447.45, 575,721.87 and 320,885.03
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Solution
The fourth proportional to 417,447.45, 575,721.87 and 320,885.03 is: 442,547.99
Step by Step Solution
- Step 1: Write the proportion equation
417,447.45 : 575,721.87 = 320,885.03 : x - Step 2: Convert to fraction form
417,447.45/575,721.87 = 320,885.03/x - Step 3: Cross multiply
417,447.45x = 575,721.87 × 320,885.03 - Step 4: Simplify right side
417,447.45x = 184,740,527,285.09 - Step 5: Solve for x
x = 184,740,527,285.09/417,447.45 - Step 6: Final answer
x = 442,547.99
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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.