Finding the Fourth Proportional to 1,689,432.29, 2,331,398.00 and 915,043.86
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Solution
The fourth proportional to 1,689,432.29, 2,331,398.00 and 915,043.86 is: 1,262,750.48
Step by Step Solution
- Step 1: Write the proportion equation
1,689,432.29 : 2,331,398.00 = 915,043.86 : x - Step 2: Convert to fraction form
1,689,432.29/2,331,398.00 = 915,043.86/x - Step 3: Cross multiply
1,689,432.29x = 2,331,398.00 × 915,043.86 - Step 4: Simplify right side
1,689,432.29x = 2,133,331,420,541.06 - Step 5: Solve for x
x = 2,133,331,420,541.06/1,689,432.29 - Step 6: Final answer
x = 1,262,750.48
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.