Finding the Fourth Proportional to 1,155,888.09, 1,595,209.68 and 646,754.49
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Solution
The fourth proportional to 1,155,888.09, 1,595,209.68 and 646,754.49 is: 892,568.26
Step by Step Solution
- Step 1: Write the proportion equation
1,155,888.09 : 1,595,209.68 = 646,754.49 : x - Step 2: Convert to fraction form
1,155,888.09/1,595,209.68 = 646,754.49/x - Step 3: Cross multiply
1,155,888.09x = 1,595,209.68 × 646,754.49 - Step 4: Simplify right side
1,155,888.09x = 1,031,709,023,031.46 - Step 5: Solve for x
x = 1,031,709,023,031.46/1,155,888.09 - Step 6: Final answer
x = 892,568.26
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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.