Finding the Fourth Proportional to 418,646.22, 577,746.99 and 239,832.78
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Solution
The fourth proportional to 418,646.22, 577,746.99 and 239,832.78 is: 330,977.95
Step by Step Solution
- Step 1: Write the proportion equation
418,646.22 : 577,746.99 = 239,832.78 : x - Step 2: Convert to fraction form
418,646.22/577,746.99 = 239,832.78/x - Step 3: Cross multiply
418,646.22x = 577,746.99 × 239,832.78 - Step 4: Simplify right side
418,646.22x = 138,562,666,748.33 - Step 5: Solve for x
x = 138,562,666,748.33/418,646.22 - Step 6: Final answer
x = 330,977.95
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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.