Finding the Fourth Proportional to 692,006.80, 1,038,010.20 and 318,029.80
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Solution
The fourth proportional to 692,006.80, 1,038,010.20 and 318,029.80 is: 477,044.70
Step by Step Solution
- Step 1: Write the proportion equation
692,006.80 : 1,038,010.20 = 318,029.80 : x - Step 2: Convert to fraction form
692,006.80/1,038,010.20 = 318,029.80/x - Step 3: Cross multiply
692,006.80x = 1,038,010.20 × 318,029.80 - Step 4: Simplify right side
692,006.80x = 330,118,176,303.96 - Step 5: Solve for x
x = 330,118,176,303.96/692,006.80 - Step 6: Final answer
x = 477,044.70
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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.