Finding the Fourth Proportional to 989,442.19, 1,365,430.70 and 559,713.19
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Solution
The fourth proportional to 989,442.19, 1,365,430.70 and 559,713.19 is: 772,404.47
Step by Step Solution
- Step 1: Write the proportion equation
989,442.19 : 1,365,430.70 = 559,713.19 : x - Step 2: Convert to fraction form
989,442.19/1,365,430.70 = 559,713.19/x - Step 3: Cross multiply
989,442.19x = 1,365,430.70 × 559,713.19 - Step 4: Simplify right side
989,442.19x = 764,249,572,820.93 - Step 5: Solve for x
x = 764,249,572,820.93/989,442.19 - Step 6: Final answer
x = 772,404.47
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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.