Finding the Fourth Proportional to 513,358.80, 770,090.99 and 193,779.86
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Solution
The fourth proportional to 513,358.80, 770,090.99 and 193,779.86 is: 290,689.71
Step by Step Solution
- Step 1: Write the proportion equation
513,358.80 : 770,090.99 = 193,779.86 : x - Step 2: Convert to fraction form
513,358.80/770,090.99 = 193,779.86/x - Step 3: Cross multiply
513,358.80x = 770,090.99 × 193,779.86 - Step 4: Simplify right side
513,358.80x = 149,228,119,410.11 - Step 5: Solve for x
x = 149,228,119,410.11/513,358.80 - Step 6: Final answer
x = 290,689.71
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.