Finding the Fourth Proportional to 819,412.84, 1,130,785.68 and 475,318.36
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Solution
The fourth proportional to 819,412.84, 1,130,785.68 and 475,318.36 is: 655,936.99
Step by Step Solution
- Step 1: Write the proportion equation
819,412.84 : 1,130,785.68 = 475,318.36 : x - Step 2: Convert to fraction form
819,412.84/1,130,785.68 = 475,318.36/x - Step 3: Cross multiply
819,412.84x = 1,130,785.68 × 475,318.36 - Step 4: Simplify right side
819,412.84x = 537,483,194,929.09 - Step 5: Solve for x
x = 537,483,194,929.09/819,412.84 - Step 6: Final answer
x = 655,936.99
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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.