Finding the Fourth Proportional to 1,115,430.16, 1,539,290.64 and 606,132.64
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Solution
The fourth proportional to 1,115,430.16, 1,539,290.64 and 606,132.64 is: 836,461.42
Step by Step Solution
- Step 1: Write the proportion equation
1,115,430.16 : 1,539,290.64 = 606,132.64 : x - Step 2: Convert to fraction form
1,115,430.16/1,539,290.64 = 606,132.64/x - Step 3: Cross multiply
1,115,430.16x = 1,539,290.64 × 606,132.64 - Step 4: Simplify right side
1,115,430.16x = 933,014,299,350.49 - Step 5: Solve for x
x = 933,014,299,350.49/1,115,430.16 - Step 6: Final answer
x = 836,461.42
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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.