Finding the Fourth Proportional to 1,331,574.18, 1,997,657.26 and 621,214.71
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Solution
The fourth proportional to 1,331,574.18, 1,997,657.26 and 621,214.71 is: 931,960.15
Step by Step Solution
- Step 1: Write the proportion equation
1,331,574.18 : 1,997,657.26 = 621,214.71 : x - Step 2: Convert to fraction form
1,331,574.18/1,997,657.26 = 621,214.71/x - Step 3: Cross multiply
1,331,574.18x = 1,997,657.26 × 621,214.71 - Step 4: Simplify right side
1,331,574.18x = 1,240,974,066,406.04 - Step 5: Solve for x
x = 1,240,974,066,406.04/1,331,574.18 - Step 6: Final answer
x = 931,960.15
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.