Finding the Fourth Proportional to 646,985.70, 970,248.15 and 292,169.70
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Solution
The fourth proportional to 646,985.70, 970,248.15 and 292,169.70 is: 438,150.50
Step by Step Solution
- Step 1: Write the proportion equation
646,985.70 : 970,248.15 = 292,169.70 : x - Step 2: Convert to fraction form
646,985.70/970,248.15 = 292,169.70/x - Step 3: Cross multiply
646,985.70x = 970,248.15 × 292,169.70 - Step 4: Simplify right side
646,985.70x = 283,477,110,911.06 - Step 5: Solve for x
x = 283,477,110,911.06/646,985.70 - Step 6: Final answer
x = 438,150.50
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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.