Finding the Fourth Proportional to 430,079.80, 645,119.70 and 403,835.80
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Solution
The fourth proportional to 430,079.80, 645,119.70 and 403,835.80 is: 605,753.70
Step by Step Solution
- Step 1: Write the proportion equation
430,079.80 : 645,119.70 = 403,835.80 : x - Step 2: Convert to fraction form
430,079.80/645,119.70 = 403,835.80/x - Step 3: Cross multiply
430,079.80x = 645,119.70 × 403,835.80 - Step 4: Simplify right side
430,079.80x = 260,522,430,145.26 - Step 5: Solve for x
x = 260,522,430,145.26/430,079.80 - Step 6: Final answer
x = 605,753.70
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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.