Finding the Fourth Proportional to 1,689,567.84, 2,331,584.19 and 915,184.08
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Solution
The fourth proportional to 1,689,567.84, 2,331,584.19 and 915,184.08 is: 1,262,943.51
Step by Step Solution
- Step 1: Write the proportion equation
1,689,567.84 : 2,331,584.19 = 915,184.08 : x - Step 2: Convert to fraction form
1,689,567.84/2,331,584.19 = 915,184.08/x - Step 3: Cross multiply
1,689,567.84x = 2,331,584.19 × 915,184.08 - Step 4: Simplify right side
1,689,567.84x = 2,133,828,731,867.70 - Step 5: Solve for x
x = 2,133,828,731,867.70/1,689,567.84 - Step 6: Final answer
x = 1,262,943.51
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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.