Finding the Fourth Proportional to 1,085,402.76, 1,628,352.18 and 375,430.20
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Solution
The fourth proportional to 1,085,402.76, 1,628,352.18 and 375,430.20 is: 563,231.09
Step by Step Solution
- Step 1: Write the proportion equation
1,085,402.76 : 1,628,352.18 = 375,430.20 : x - Step 2: Convert to fraction form
1,085,402.76/1,628,352.18 = 375,430.20/x - Step 3: Cross multiply
1,085,402.76x = 1,628,352.18 × 375,430.20 - Step 4: Simplify right side
1,085,402.76x = 611,332,584,607.84 - Step 5: Solve for x
x = 611,332,584,607.84/1,085,402.76 - Step 6: Final answer
x = 563,231.09
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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.