Finding the Fourth Proportional to 688,443.63, 1,032,421.07 and 201,990
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Solution
The fourth proportional to 688,443.63, 1,032,421.07 and 201,990 is: 302,913.30
Step by Step Solution
- Step 1: Write the proportion equation
688,443.63 : 1,032,421.07 = 201,990 : x - Step 2: Convert to fraction form
688,443.63/1,032,421.07 = 201,990/x - Step 3: Cross multiply
688,443.63x = 1,032,421.07 × 201,990 - Step 4: Simplify right side
688,443.63x = 208,538,731,676.81 - Step 5: Solve for x
x = 208,538,731,676.81/688,443.63 - Step 6: Final answer
x = 302,913.30
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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.