Finding the Fourth Proportional to 2,390,638.85, 3,298,985.57 and 1,302,887.09
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Solution
The fourth proportional to 2,390,638.85, 3,298,985.57 and 1,302,887.09 is: 1,797,931.84
Step by Step Solution
- Step 1: Write the proportion equation
2,390,638.85 : 3,298,985.57 = 1,302,887.09 : x - Step 2: Convert to fraction form
2,390,638.85/3,298,985.57 = 1,302,887.09/x - Step 3: Cross multiply
2,390,638.85x = 3,298,985.57 × 1,302,887.09 - Step 4: Simplify right side
2,390,638.85x = 4,298,205,686,239.93 - Step 5: Solve for x
x = 4,298,205,686,239.93/2,390,638.85 - Step 6: Final answer
x = 1,797,931.84
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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.