Finding the Fourth Proportional to 1,652,968.12, 2,478,488.81 and 640,907.74
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Solution
The fourth proportional to 1,652,968.12, 2,478,488.81 and 640,907.74 is: 960,988.08
Step by Step Solution
- Step 1: Write the proportion equation
1,652,968.12 : 2,478,488.81 = 640,907.74 : x - Step 2: Convert to fraction form
1,652,968.12/2,478,488.81 = 640,907.74/x - Step 3: Cross multiply
1,652,968.12x = 2,478,488.81 × 640,907.74 - Step 4: Simplify right side
1,652,968.12x = 1,588,482,658,627.85 - Step 5: Solve for x
x = 1,588,482,658,627.85/1,652,968.12 - Step 6: Final answer
x = 960,988.08
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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.