Finding the Fourth Proportional to 2,578,889.10, 3,868,366.05 and 781,790.70
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Solution
The fourth proportional to 2,578,889.10, 3,868,366.05 and 781,790.70 is: 1,172,695.87
Step by Step Solution
- Step 1: Write the proportion equation
2,578,889.10 : 3,868,366.05 = 781,790.70 : x - Step 2: Convert to fraction form
2,578,889.10/3,868,366.05 = 781,790.70/x - Step 3: Cross multiply
2,578,889.10x = 3,868,366.05 × 781,790.70 - Step 4: Simplify right side
2,578,889.10x = 3,024,252,602,085.74 - Step 5: Solve for x
x = 3,024,252,602,085.74/2,578,889.10 - Step 6: Final answer
x = 1,172,695.87
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.