Finding the Fourth Proportional to 1,226,117.64, 1,692,276.42 and 811,924.14
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Solution
The fourth proportional to 1,226,117.64, 1,692,276.42 and 811,924.14 is: 1,120,610.32
Step by Step Solution
- Step 1: Write the proportion equation
1,226,117.64 : 1,692,276.42 = 811,924.14 : x - Step 2: Convert to fraction form
1,226,117.64/1,692,276.42 = 811,924.14/x - Step 3: Cross multiply
1,226,117.64x = 1,692,276.42 × 811,924.14 - Step 4: Simplify right side
1,226,117.64x = 1,374,000,076,950.78 - Step 5: Solve for x
x = 1,374,000,076,950.78/1,226,117.64 - Step 6: Final answer
x = 1,120,610.32
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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.