Finding the Fourth Proportional to 830,752.80, 1,146,438.12 and 448,779.48
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Solution
The fourth proportional to 830,752.80, 1,146,438.12 and 448,779.48 is: 619,315.28
Step by Step Solution
- Step 1: Write the proportion equation
830,752.80 : 1,146,438.12 = 448,779.48 : x - Step 2: Convert to fraction form
830,752.80/1,146,438.12 = 448,779.48/x - Step 3: Cross multiply
830,752.80x = 1,146,438.12 × 448,779.48 - Step 4: Simplify right side
830,752.80x = 514,497,903,345.78 - Step 5: Solve for x
x = 514,497,903,345.78/830,752.80 - Step 6: Final answer
x = 619,315.28
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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.