Finding the Fourth Proportional to 2,159,492.16, 2,980,099.12 and 1,254,132.48
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Solution
The fourth proportional to 2,159,492.16, 2,980,099.12 and 1,254,132.48 is: 1,730,702.79
Step by Step Solution
- Step 1: Write the proportion equation
2,159,492.16 : 2,980,099.12 = 1,254,132.48 : x - Step 2: Convert to fraction form
2,159,492.16/2,980,099.12 = 1,254,132.48/x - Step 3: Cross multiply
2,159,492.16x = 2,980,099.12 × 1,254,132.48 - Step 4: Simplify right side
2,159,492.16x = 3,737,439,100,011.42 - Step 5: Solve for x
x = 3,737,439,100,011.42/2,159,492.16 - Step 6: Final answer
x = 1,730,702.79
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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.