Finding the Fourth Proportional to 947,811.84, 1,307,980.40 and 518,093.68
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Solution
The fourth proportional to 947,811.84, 1,307,980.40 and 518,093.68 is: 714,969.31
Step by Step Solution
- Step 1: Write the proportion equation
947,811.84 : 1,307,980.40 = 518,093.68 : x - Step 2: Convert to fraction form
947,811.84/1,307,980.40 = 518,093.68/x - Step 3: Cross multiply
947,811.84x = 1,307,980.40 × 518,093.68 - Step 4: Simplify right side
947,811.84x = 677,656,378,803.87 - Step 5: Solve for x
x = 677,656,378,803.87/947,811.84 - Step 6: Final answer
x = 714,969.31
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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.