Finding the Fourth Proportional to 1,492,087.20, 2,238,792.12 and 781,946.28
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Solution
The fourth proportional to 1,492,087.20, 2,238,792.12 and 781,946.28 is: 1,173,265.99
Step by Step Solution
- Step 1: Write the proportion equation
1,492,087.20 : 2,238,792.12 = 781,946.28 : x - Step 2: Convert to fraction form
1,492,087.20/2,238,792.12 = 781,946.28/x - Step 3: Cross multiply
1,492,087.20x = 2,238,792.12 × 781,946.28 - Step 4: Simplify right side
1,492,087.20x = 1,750,615,169,927.31 - Step 5: Solve for x
x = 1,750,615,169,927.31/1,492,087.20 - Step 6: Final answer
x = 1,173,265.99
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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.