Finding the Fourth Proportional to 478,789.03, 660,775.42 and 357,720.15
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Solution
The fourth proportional to 478,789.03, 660,775.42 and 357,720.15 is: 493,688.59
Step by Step Solution
- Step 1: Write the proportion equation
478,789.03 : 660,775.42 = 357,720.15 : x - Step 2: Convert to fraction form
478,789.03/660,775.42 = 357,720.15/x - Step 3: Cross multiply
478,789.03x = 660,775.42 × 357,720.15 - Step 4: Simplify right side
478,789.03x = 236,372,682,358.71 - Step 5: Solve for x
x = 236,372,682,358.71/478,789.03 - Step 6: Final answer
x = 493,688.59
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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.