Finding the Fourth Proportional to 527,345.99, 791,019.38 and 127,987.15
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Solution
The fourth proportional to 527,345.99, 791,019.38 and 127,987.15 is: 191,980.81
Step by Step Solution
- Step 1: Write the proportion equation
527,345.99 : 791,019.38 = 127,987.15 : x - Step 2: Convert to fraction form
527,345.99/791,019.38 = 127,987.15/x - Step 3: Cross multiply
527,345.99x = 791,019.38 × 127,987.15 - Step 4: Simplify right side
527,345.99x = 101,240,313,423.48 - Step 5: Solve for x
x = 101,240,313,423.48/527,345.99 - Step 6: Final answer
x = 191,980.81
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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.