Finding the Fourth Proportional to 900,829.99, 1,243,090.68 and 513,591.26
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Solution
The fourth proportional to 900,829.99, 1,243,090.68 and 513,591.26 is: 708,724.75
Step by Step Solution
- Step 1: Write the proportion equation
900,829.99 : 1,243,090.68 = 513,591.26 : x - Step 2: Convert to fraction form
900,829.99/1,243,090.68 = 513,591.26/x - Step 3: Cross multiply
900,829.99x = 1,243,090.68 × 513,591.26 - Step 4: Simplify right side
900,829.99x = 638,440,508,635.46 - Step 5: Solve for x
x = 638,440,508,635.46/900,829.99 - Step 6: Final answer
x = 708,724.75
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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.