Finding the Fourth Proportional to 1,636,903.80, 2,455,355.70 and 1,518,805.80
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Solution
The fourth proportional to 1,636,903.80, 2,455,355.70 and 1,518,805.80 is: 2,278,208.70
Step by Step Solution
- Step 1: Write the proportion equation
1,636,903.80 : 2,455,355.70 = 1,518,805.80 : x - Step 2: Convert to fraction form
1,636,903.80/2,455,355.70 = 1,518,805.80/x - Step 3: Cross multiply
1,636,903.80x = 2,455,355.70 × 1,518,805.80 - Step 4: Simplify right side
1,636,903.80x = 3,729,208,478,223.06 - Step 5: Solve for x
x = 3,729,208,478,223.06/1,636,903.80 - Step 6: Final answer
x = 2,278,208.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.