Finding the Fourth Proportional to 553,424.58, 830,137.08 and 427,249.02
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Solution
The fourth proportional to 553,424.58, 830,137.08 and 427,249.02 is: 640,873.69
Step by Step Solution
- Step 1: Write the proportion equation
553,424.58 : 830,137.08 = 427,249.02 : x - Step 2: Convert to fraction form
553,424.58/830,137.08 = 427,249.02/x - Step 3: Cross multiply
553,424.58x = 830,137.08 × 427,249.02 - Step 4: Simplify right side
553,424.58x = 354,675,253,895.66 - Step 5: Solve for x
x = 354,675,253,895.66/553,424.58 - Step 6: Final answer
x = 640,873.69
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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.