Finding the Fourth Proportional to 998,126.84, 1,377,418.62 and 545,417.84
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Solution
The fourth proportional to 998,126.84, 1,377,418.62 and 545,417.84 is: 752,678.58
Step by Step Solution
- Step 1: Write the proportion equation
998,126.84 : 1,377,418.62 = 545,417.84 : x - Step 2: Convert to fraction form
998,126.84/1,377,418.62 = 545,417.84/x - Step 3: Cross multiply
998,126.84x = 1,377,418.62 × 545,417.84 - Step 4: Simplify right side
998,126.84x = 751,268,688,496.18 - Step 5: Solve for x
x = 751,268,688,496.18/998,126.84 - Step 6: Final answer
x = 752,678.58
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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.