Finding the Fourth Proportional to 692,701.16, 1,038,133.20 and 355,728.20
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Solution
The fourth proportional to 692,701.16, 1,038,133.20 and 355,728.20 is: 533,120.60
Step by Step Solution
- Step 1: Write the proportion equation
692,701.16 : 1,038,133.20 = 355,728.20 : x - Step 2: Convert to fraction form
692,701.16/1,038,133.20 = 355,728.20/x - Step 3: Cross multiply
692,701.16x = 1,038,133.20 × 355,728.20 - Step 4: Simplify right side
692,701.16x = 369,293,254,596.24 - Step 5: Solve for x
x = 369,293,254,596.24/692,701.16 - Step 6: Final answer
x = 533,120.60
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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.