Finding the Fourth Proportional to 506,889.90, 699,430.14 and 291,987.99
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Solution
The fourth proportional to 506,889.90, 699,430.14 and 291,987.99 is: 402,898.54
Step by Step Solution
- Step 1: Write the proportion equation
506,889.90 : 699,430.14 = 291,987.99 : x - Step 2: Convert to fraction form
506,889.90/699,430.14 = 291,987.99/x - Step 3: Cross multiply
506,889.90x = 699,430.14 × 291,987.99 - Step 4: Simplify right side
506,889.90x = 204,225,200,724.02 - Step 5: Solve for x
x = 204,225,200,724.02/506,889.90 - Step 6: Final answer
x = 402,898.54
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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.