Finding the Fourth Proportional to 1,865,885.12, 2,576,160.96 and 1,435,405.76
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Solution
The fourth proportional to 1,865,885.12, 2,576,160.96 and 1,435,405.76 is: 1,981,813.48
Step by Step Solution
- Step 1: Write the proportion equation
1,865,885.12 : 2,576,160.96 = 1,435,405.76 : x - Step 2: Convert to fraction form
1,865,885.12/2,576,160.96 = 1,435,405.76/x - Step 3: Cross multiply
1,865,885.12x = 2,576,160.96 × 1,435,405.76 - Step 4: Simplify right side
1,865,885.12x = 3,697,836,280,671.13 - Step 5: Solve for x
x = 3,697,836,280,671.13/1,865,885.12 - Step 6: Final answer
x = 1,981,813.48
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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.