Finding the Fourth Proportional to 687,483.08, 1,031,295.90 and 238,203.08
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Solution
The fourth proportional to 687,483.08, 1,031,295.90 and 238,203.08 is: 357,329.32
Step by Step Solution
- Step 1: Write the proportion equation
687,483.08 : 1,031,295.90 = 238,203.08 : x - Step 2: Convert to fraction form
687,483.08/1,031,295.90 = 238,203.08/x - Step 3: Cross multiply
687,483.08x = 1,031,295.90 × 238,203.08 - Step 4: Simplify right side
687,483.08x = 245,657,859,771.37 - Step 5: Solve for x
x = 245,657,859,771.37/687,483.08 - Step 6: Final answer
x = 357,329.32
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1.5x scale
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.