Finding the Fourth Proportional to 1,615,237.20, 2,420,134.20 and 1,276,981.20
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Solution
The fourth proportional to 1,615,237.20, 2,420,134.20 and 1,276,981.20 is: 1,913,320.15
Step by Step Solution
- Step 1: Write the proportion equation
1,615,237.20 : 2,420,134.20 = 1,276,981.20 : x - Step 2: Convert to fraction form
1,615,237.20/2,420,134.20 = 1,276,981.20/x - Step 3: Cross multiply
1,615,237.20x = 2,420,134.20 × 1,276,981.20 - Step 4: Simplify right side
1,615,237.20x = 3,090,465,874,877.04 - Step 5: Solve for x
x = 3,090,465,874,877.04/1,615,237.20 - Step 6: Final answer
x = 1,913,320.15
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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.