Finding the Fourth Proportional to 1,433,285.65, 1,977,909.16 and 779,889.63
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Solution
The fourth proportional to 1,433,285.65, 1,977,909.16 and 779,889.63 is: 1,076,234.07
Step by Step Solution
- Step 1: Write the proportion equation
1,433,285.65 : 1,977,909.16 = 779,889.63 : x - Step 2: Convert to fraction form
1,433,285.65/1,977,909.16 = 779,889.63/x - Step 3: Cross multiply
1,433,285.65x = 1,977,909.16 × 779,889.63 - Step 4: Simplify right side
1,433,285.65x = 1,542,550,842,966.01 - Step 5: Solve for x
x = 1,542,550,842,966.01/1,433,285.65 - Step 6: Final answer
x = 1,076,234.07
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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.