Finding the Fourth Proportional to 643,451.58, 888,041.93 and 371,519.02
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Solution
The fourth proportional to 643,451.58, 888,041.93 and 371,519.02 is: 512,741.71
Step by Step Solution
- Step 1: Write the proportion equation
643,451.58 : 888,041.93 = 371,519.02 : x - Step 2: Convert to fraction form
643,451.58/888,041.93 = 371,519.02/x - Step 3: Cross multiply
643,451.58x = 888,041.93 × 371,519.02 - Step 4: Simplify right side
643,451.58x = 329,924,463,474.81 - Step 5: Solve for x
x = 329,924,463,474.81/643,451.58 - Step 6: Final answer
x = 512,741.71
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.