Finding the Fourth Proportional to 778,563.10, 1,074,415.35 and 439,028.98
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Solution
The fourth proportional to 778,563.10, 1,074,415.35 and 439,028.98 is: 605,859.02
Step by Step Solution
- Step 1: Write the proportion equation
778,563.10 : 1,074,415.35 = 439,028.98 : x - Step 2: Convert to fraction form
778,563.10/1,074,415.35 = 439,028.98/x - Step 3: Cross multiply
778,563.10x = 1,074,415.35 × 439,028.98 - Step 4: Simplify right side
778,563.10x = 471,699,475,206.84 - Step 5: Solve for x
x = 471,699,475,206.84/778,563.10 - Step 6: Final answer
x = 605,859.02
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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.