Finding the Fourth Proportional to 1,424,470.21, 1,965,767.95 and 779,890.24
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Solution
The fourth proportional to 1,424,470.21, 1,965,767.95 and 779,890.24 is: 1,076,248.02
Step by Step Solution
- Step 1: Write the proportion equation
1,424,470.21 : 1,965,767.95 = 779,890.24 : x - Step 2: Convert to fraction form
1,424,470.21/1,965,767.95 = 779,890.24/x - Step 3: Cross multiply
1,424,470.21x = 1,965,767.95 × 779,890.24 - Step 4: Simplify right side
1,424,470.21x = 1,533,083,238,309.81 - Step 5: Solve for x
x = 1,533,083,238,309.81/1,424,470.21 - Step 6: Final answer
x = 1,076,248.02
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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.