Finding the Fourth Proportional to 1,284,213.08, 1,772,209.63 and 740,346.28
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Solution
The fourth proportional to 1,284,213.08, 1,772,209.63 and 740,346.28 is: 1,021,675.31
Step by Step Solution
- Step 1: Write the proportion equation
1,284,213.08 : 1,772,209.63 = 740,346.28 : x - Step 2: Convert to fraction form
1,284,213.08/1,772,209.63 = 740,346.28/x - Step 3: Cross multiply
1,284,213.08x = 1,772,209.63 × 740,346.28 - Step 4: Simplify right side
1,284,213.08x = 1,312,048,803,445.59 - Step 5: Solve for x
x = 1,312,048,803,445.59/1,284,213.08 - Step 6: Final answer
x = 1,021,675.31
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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.