Finding the Fourth Proportional to 690,024.02, 951,965.87 and 509,170.05
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Solution
The fourth proportional to 690,024.02, 951,965.87 and 509,170.05 is: 702,457.45
Step by Step Solution
- Step 1: Write the proportion equation
690,024.02 : 951,965.87 = 509,170.05 : x - Step 2: Convert to fraction form
690,024.02/951,965.87 = 509,170.05/x - Step 3: Cross multiply
690,024.02x = 951,965.87 × 509,170.05 - Step 4: Simplify right side
690,024.02x = 484,712,507,080.34 - Step 5: Solve for x
x = 484,712,507,080.34/690,024.02 - Step 6: Final answer
x = 702,457.45
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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.