Finding the Fourth Proportional to 509,389.16, 702,943.14 and 283,028.84
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Solution
The fourth proportional to 509,389.16, 702,943.14 and 283,028.84 is: 390,572.08
Step by Step Solution
- Step 1: Write the proportion equation
509,389.16 : 702,943.14 = 283,028.84 : x - Step 2: Convert to fraction form
509,389.16/702,943.14 = 283,028.84/x - Step 3: Cross multiply
509,389.16x = 702,943.14 × 283,028.84 - Step 4: Simplify right side
509,389.16x = 198,953,181,500.16 - Step 5: Solve for x
x = 198,953,181,500.16/509,389.16 - Step 6: Final answer
x = 390,572.08
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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.