Finding the Fourth Proportional to 1,223,415.55, 1,688,497.41 and 880,387.03
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Solution
The fourth proportional to 1,223,415.55, 1,688,497.41 and 880,387.03 is: 1,215,066.48
Step by Step Solution
- Step 1: Write the proportion equation
1,223,415.55 : 1,688,497.41 = 880,387.03 : x - Step 2: Convert to fraction form
1,223,415.55/1,688,497.41 = 880,387.03/x - Step 3: Cross multiply
1,223,415.55x = 1,688,497.41 × 880,387.03 - Step 4: Simplify right side
1,223,415.55x = 1,486,531,219,952.59 - Step 5: Solve for x
x = 1,486,531,219,952.59/1,223,415.55 - Step 6: Final answer
x = 1,215,066.48
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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.