Finding the Fourth Proportional to 778,691.52, 1,074,579.48 and 439,159.68
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Solution
The fourth proportional to 778,691.52, 1,074,579.48 and 439,159.68 is: 606,032.00
Step by Step Solution
- Step 1: Write the proportion equation
778,691.52 : 1,074,579.48 = 439,159.68 : x - Step 2: Convert to fraction form
778,691.52/1,074,579.48 = 439,159.68/x - Step 3: Cross multiply
778,691.52x = 1,074,579.48 × 439,159.68 - Step 4: Simplify right side
778,691.52x = 471,911,980,571.37 - Step 5: Solve for x
x = 471,911,980,571.37/778,691.52 - Step 6: Final answer
x = 606,032.00
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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.