Finding the Fourth Proportional to 1,291,059.19, 1,781,624.70 and 702,340.15
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Solution
The fourth proportional to 1,291,059.19, 1,781,624.70 and 702,340.15 is: 969,209.29
Step by Step Solution
- Step 1: Write the proportion equation
1,291,059.19 : 1,781,624.70 = 702,340.15 : x - Step 2: Convert to fraction form
1,291,059.19/1,781,624.70 = 702,340.15/x - Step 3: Cross multiply
1,291,059.19x = 1,781,624.70 × 702,340.15 - Step 4: Simplify right side
1,291,059.19x = 1,251,306,559,041.71 - Step 5: Solve for x
x = 1,251,306,559,041.71/1,291,059.19 - Step 6: Final answer
x = 969,209.29
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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.