Finding the Fourth Proportional to 713,044.80, 1,069,567.20 and 513,979.20
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Solution
The fourth proportional to 713,044.80, 1,069,567.20 and 513,979.20 is: 770,968.80
Step by Step Solution
- Step 1: Write the proportion equation
713,044.80 : 1,069,567.20 = 513,979.20 : x - Step 2: Convert to fraction form
713,044.80/1,069,567.20 = 513,979.20/x - Step 3: Cross multiply
713,044.80x = 1,069,567.20 × 513,979.20 - Step 4: Simplify right side
713,044.80x = 549,735,293,802.24 - Step 5: Solve for x
x = 549,735,293,802.24/713,044.80 - Step 6: Final answer
x = 770,968.80
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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.