Finding the Fourth Proportional to 1,912,518.95, 2,639,334.20 and 1,053,109.96
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Solution
The fourth proportional to 1,912,518.95, 2,639,334.20 and 1,053,109.96 is: 1,453,323.71
Step by Step Solution
- Step 1: Write the proportion equation
1,912,518.95 : 2,639,334.20 = 1,053,109.96 : x - Step 2: Convert to fraction form
1,912,518.95/2,639,334.20 = 1,053,109.96/x - Step 3: Cross multiply
1,912,518.95x = 2,639,334.20 × 1,053,109.96 - Step 4: Simplify right side
1,912,518.95x = 2,779,509,133,788.63 - Step 5: Solve for x
x = 2,779,509,133,788.63/1,912,518.95 - Step 6: Final answer
x = 1,453,323.71
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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.