Finding the Fourth Proportional to 787,887.36, 1,087,239.84 and 465,627.48
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Solution
The fourth proportional to 787,887.36, 1,087,239.84 and 465,627.48 is: 642,539.50
Step by Step Solution
- Step 1: Write the proportion equation
787,887.36 : 1,087,239.84 = 465,627.48 : x - Step 2: Convert to fraction form
787,887.36/1,087,239.84 = 465,627.48/x - Step 3: Cross multiply
787,887.36x = 1,087,239.84 × 465,627.48 - Step 4: Simplify right side
787,887.36x = 506,248,746,854.80 - Step 5: Solve for x
x = 506,248,746,854.80/787,887.36 - Step 6: Final answer
x = 642,539.50
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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.