Finding the Fourth Proportional to 493,130.24, 680,303.68 and 289,077.68
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Solution
The fourth proportional to 493,130.24, 680,303.68 and 289,077.68 is: 398,800.55
Step by Step Solution
- Step 1: Write the proportion equation
493,130.24 : 680,303.68 = 289,077.68 : x - Step 2: Convert to fraction form
493,130.24/680,303.68 = 289,077.68/x - Step 3: Cross multiply
493,130.24x = 680,303.68 × 289,077.68 - Step 4: Simplify right side
493,130.24x = 196,660,609,509.86 - Step 5: Solve for x
x = 196,660,609,509.86/493,130.24 - Step 6: Final answer
x = 398,800.55
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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.