Finding the Fourth Proportional to 998,784.74, 1,378,328.73 and 546,075.74
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Solution
The fourth proportional to 998,784.74, 1,378,328.73 and 546,075.74 is: 753,587.69
Step by Step Solution
- Step 1: Write the proportion equation
998,784.74 : 1,378,328.73 = 546,075.74 : x - Step 2: Convert to fraction form
998,784.74/1,378,328.73 = 546,075.74/x - Step 3: Cross multiply
998,784.74x = 1,378,328.73 × 546,075.74 - Step 4: Simplify right side
998,784.74x = 752,671,881,198.01 - Step 5: Solve for x
x = 752,671,881,198.01/998,784.74 - Step 6: Final answer
x = 753,587.69
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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.