Finding the Fourth Proportional to 1,974,983.36, 2,725,471.20 and 1,069,565.12
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Solution
The fourth proportional to 1,974,983.36, 2,725,471.20 and 1,069,565.12 is: 1,475,996.70
Step by Step Solution
- Step 1: Write the proportion equation
1,974,983.36 : 2,725,471.20 = 1,069,565.12 : x - Step 2: Convert to fraction form
1,974,983.36/2,725,471.20 = 1,069,565.12/x - Step 3: Cross multiply
1,974,983.36x = 2,725,471.20 × 1,069,565.12 - Step 4: Simplify right side
1,974,983.36x = 2,915,068,931,084.54 - Step 5: Solve for x
x = 2,915,068,931,084.54/1,974,983.36 - Step 6: Final answer
x = 1,475,996.70
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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.