Finding the Fourth Proportional to 1,119,947.24, 1,545,488.70 and 636,503.96
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Solution
The fourth proportional to 1,119,947.24, 1,545,488.70 and 636,503.96 is: 878,353.59
Step by Step Solution
- Step 1: Write the proportion equation
1,119,947.24 : 1,545,488.70 = 636,503.96 : x - Step 2: Convert to fraction form
1,119,947.24/1,545,488.70 = 636,503.96/x - Step 3: Cross multiply
1,119,947.24x = 1,545,488.70 × 636,503.96 - Step 4: Simplify right side
1,119,947.24x = 983,709,677,685.25 - Step 5: Solve for x
x = 983,709,677,685.25/1,119,947.24 - Step 6: Final answer
x = 878,353.59
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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.