Finding the Fourth Proportional to 697,353.12, 1,046,029.68 and 487,401.12
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Solution
The fourth proportional to 697,353.12, 1,046,029.68 and 487,401.12 is: 731,101.68
Step by Step Solution
- Step 1: Write the proportion equation
697,353.12 : 1,046,029.68 = 487,401.12 : x - Step 2: Convert to fraction form
697,353.12/1,046,029.68 = 487,401.12/x - Step 3: Cross multiply
697,353.12x = 1,046,029.68 × 487,401.12 - Step 4: Simplify right side
697,353.12x = 509,836,037,585.24 - Step 5: Solve for x
x = 509,836,037,585.24/697,353.12 - Step 6: Final answer
x = 731,101.68
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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.