Finding the Fourth Proportional to 1,226,532.08, 1,692,403.68 and 1,127,317.28
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Solution
The fourth proportional to 1,226,532.08, 1,692,403.68 and 1,127,317.28 is: 1,555,504.29
Step by Step Solution
- Step 1: Write the proportion equation
1,226,532.08 : 1,692,403.68 = 1,127,317.28 : x - Step 2: Convert to fraction form
1,226,532.08/1,692,403.68 = 1,127,317.28/x - Step 3: Cross multiply
1,226,532.08x = 1,692,403.68 × 1,127,317.28 - Step 4: Simplify right side
1,226,532.08x = 1,907,875,913,199.59 - Step 5: Solve for x
x = 1,907,875,913,199.59/1,226,532.08 - Step 6: Final answer
x = 1,555,504.29
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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.