Finding the Fourth Proportional to 689,289.99, 951,246.51 and 383,388.54
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Solution
The fourth proportional to 689,289.99, 951,246.51 and 383,388.54 is: 529,090.83
Step by Step Solution
- Step 1: Write the proportion equation
689,289.99 : 951,246.51 = 383,388.54 : x - Step 2: Convert to fraction form
689,289.99/951,246.51 = 383,388.54/x - Step 3: Cross multiply
689,289.99x = 951,246.51 × 383,388.54 - Step 4: Simplify right side
689,289.99x = 364,697,010,649.00 - Step 5: Solve for x
x = 364,697,010,649.00/689,289.99 - Step 6: Final answer
x = 529,090.83
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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.