Finding the Fourth Proportional to 752,257.68, 1,037,335.11 and 643,721.18
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Solution
The fourth proportional to 752,257.68, 1,037,335.11 and 643,721.18 is: 887,667.34
Step by Step Solution
- Step 1: Write the proportion equation
752,257.68 : 1,037,335.11 = 643,721.18 : x - Step 2: Convert to fraction form
752,257.68/1,037,335.11 = 643,721.18/x - Step 3: Cross multiply
752,257.68x = 1,037,335.11 × 643,721.18 - Step 4: Simplify right side
752,257.68x = 667,754,573,464.00 - Step 5: Solve for x
x = 667,754,573,464.00/752,257.68 - Step 6: Final answer
x = 887,667.34
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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.