Finding the Fourth Proportional to 1,298,496.24, 1,947,953.64 and 399,937.68
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Solution
The fourth proportional to 1,298,496.24, 1,947,953.64 and 399,937.68 is: 599,970.98
Step by Step Solution
- Step 1: Write the proportion equation
1,298,496.24 : 1,947,953.64 = 399,937.68 : x - Step 2: Convert to fraction form
1,298,496.24/1,947,953.64 = 399,937.68/x - Step 3: Cross multiply
1,298,496.24x = 1,947,953.64 × 399,937.68 - Step 4: Simplify right side
1,298,496.24x = 779,060,059,529.16 - Step 5: Solve for x
x = 779,060,059,529.16/1,298,496.24 - Step 6: Final answer
x = 599,970.98
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.