Finding the Fourth Proportional to 1,688,689.80, 2,330,321.94 and 924,730.20
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Solution
The fourth proportional to 1,688,689.80, 2,330,321.94 and 924,730.20 is: 1,276,089.35
Step by Step Solution
- Step 1: Write the proportion equation
1,688,689.80 : 2,330,321.94 = 924,730.20 : x - Step 2: Convert to fraction form
1,688,689.80/2,330,321.94 = 924,730.20/x - Step 3: Cross multiply
1,688,689.80x = 2,330,321.94 × 924,730.20 - Step 4: Simplify right side
1,688,689.80x = 2,154,919,073,640.59 - Step 5: Solve for x
x = 2,154,919,073,640.59/1,688,689.80 - Step 6: Final answer
x = 1,276,089.35
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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.