Finding the Fourth Proportional to 1,571,947.20, 2,357,920.80 and 774,785.70
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Solution
The fourth proportional to 1,571,947.20, 2,357,920.80 and 774,785.70 is: 1,162,178.55
Step by Step Solution
- Step 1: Write the proportion equation
1,571,947.20 : 2,357,920.80 = 774,785.70 : x - Step 2: Convert to fraction form
1,571,947.20/2,357,920.80 = 774,785.70/x - Step 3: Cross multiply
1,571,947.20x = 2,357,920.80 × 774,785.70 - Step 4: Simplify right side
1,571,947.20x = 1,826,883,317,572.56 - Step 5: Solve for x
x = 1,826,883,317,572.56/1,571,947.20 - Step 6: Final answer
x = 1,162,178.55
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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.