Finding the Fourth Proportional to 916,707.76, 1,265,037.68 and 508,785.68
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Solution
The fourth proportional to 916,707.76, 1,265,037.68 and 508,785.68 is: 702,113.68
Step by Step Solution
- Step 1: Write the proportion equation
916,707.76 : 1,265,037.68 = 508,785.68 : x - Step 2: Convert to fraction form
916,707.76/1,265,037.68 = 508,785.68/x - Step 3: Cross multiply
916,707.76x = 1,265,037.68 × 508,785.68 - Step 4: Simplify right side
916,707.76x = 643,633,053,700.49 - Step 5: Solve for x
x = 643,633,053,700.49/916,707.76 - Step 6: Final answer
x = 702,113.68
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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.