Finding the Fourth Proportional to 840,305.70, 1,159,719.90 and 477,783.88
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Solution
The fourth proportional to 840,305.70, 1,159,719.90 and 477,783.88 is: 659,397.49
Step by Step Solution
- Step 1: Write the proportion equation
840,305.70 : 1,159,719.90 = 477,783.88 : x - Step 2: Convert to fraction form
840,305.70/1,159,719.90 = 477,783.88/x - Step 3: Cross multiply
840,305.70x = 1,159,719.90 × 477,783.88 - Step 4: Simplify right side
840,305.70x = 554,095,473,535.21 - Step 5: Solve for x
x = 554,095,473,535.21/840,305.70 - Step 6: Final answer
x = 659,397.49
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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.