Finding the Fourth Proportional to 787,856.60, 1,087,197.52 and 465,596.68
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Solution
The fourth proportional to 787,856.60, 1,087,197.52 and 465,596.68 is: 642,497.07
Step by Step Solution
- Step 1: Write the proportion equation
787,856.60 : 1,087,197.52 = 465,596.68 : x - Step 2: Convert to fraction form
787,856.60/1,087,197.52 = 465,596.68/x - Step 3: Cross multiply
787,856.60x = 1,087,197.52 × 465,596.68 - Step 4: Simplify right side
787,856.60x = 506,195,555,816.23 - Step 5: Solve for x
x = 506,195,555,816.23/787,856.60 - Step 6: Final answer
x = 642,497.07
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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.