Finding the Fourth Proportional to 1,621,358.62, 2,420,164.84 and 1,429,830.70
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Solution
The fourth proportional to 1,621,358.62, 2,420,164.84 and 1,429,830.70 is: 2,134,275.50
Step by Step Solution
- Step 1: Write the proportion equation
1,621,358.62 : 2,420,164.84 = 1,429,830.70 : x - Step 2: Convert to fraction form
1,621,358.62/2,420,164.84 = 1,429,830.70/x - Step 3: Cross multiply
1,621,358.62x = 2,420,164.84 × 1,429,830.70 - Step 4: Simplify right side
1,621,358.62x = 3,460,425,987,292.59 - Step 5: Solve for x
x = 3,460,425,987,292.59/1,621,358.62 - Step 6: Final answer
x = 2,134,275.50
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.