Finding the Fourth Proportional to 459,041.42, 688,507.36 and 122,106.74
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Solution
The fourth proportional to 459,041.42, 688,507.36 and 122,106.74 is: 183,145.53
Step by Step Solution
- Step 1: Write the proportion equation
459,041.42 : 688,507.36 = 122,106.74 : x - Step 2: Convert to fraction form
459,041.42/688,507.36 = 122,106.74/x - Step 3: Cross multiply
459,041.42x = 688,507.36 × 122,106.74 - Step 4: Simplify right side
459,041.42x = 84,071,385,447.80 - Step 5: Solve for x
x = 84,071,385,447.80/459,041.42 - Step 6: Final answer
x = 183,145.53
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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.