Finding the Fourth Proportional to 518,028.84, 714,930.98 and 303,156.09
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Solution
The fourth proportional to 518,028.84, 714,930.98 and 303,156.09 is: 418,385.35
Step by Step Solution
- Step 1: Write the proportion equation
518,028.84 : 714,930.98 = 303,156.09 : x - Step 2: Convert to fraction form
518,028.84/714,930.98 = 303,156.09/x - Step 3: Cross multiply
518,028.84x = 714,930.98 × 303,156.09 - Step 4: Simplify right side
518,028.84x = 216,735,679,000.89 - Step 5: Solve for x
x = 216,735,679,000.89/518,028.84 - Step 6: Final answer
x = 418,385.35
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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.