Finding the Fourth Proportional to 1,231,977.08, 1,700,110.28 and 688,120.81
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Solution
The fourth proportional to 1,231,977.08, 1,700,110.28 and 688,120.81 is: 949,596.61
Step by Step Solution
- Step 1: Write the proportion equation
1,231,977.08 : 1,700,110.28 = 688,120.81 : x - Step 2: Convert to fraction form
1,231,977.08/1,700,110.28 = 688,120.81/x - Step 3: Cross multiply
1,231,977.08x = 1,700,110.28 × 688,120.81 - Step 4: Simplify right side
1,231,977.08x = 1,169,881,262,962.93 - Step 5: Solve for x
x = 1,169,881,262,962.93/1,231,977.08 - Step 6: Final answer
x = 949,596.61
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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.