Finding the Fourth Proportional to 1,069,605.12, 1,604,374.74 and 438,043.26
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Solution
The fourth proportional to 1,069,605.12, 1,604,374.74 and 438,043.26 is: 657,051.40
Step by Step Solution
- Step 1: Write the proportion equation
1,069,605.12 : 1,604,374.74 = 438,043.26 : x - Step 2: Convert to fraction form
1,069,605.12/1,604,374.74 = 438,043.26/x - Step 3: Cross multiply
1,069,605.12x = 1,604,374.74 × 438,043.26 - Step 4: Simplify right side
1,069,605.12x = 702,785,541,371.25 - Step 5: Solve for x
x = 702,785,541,371.25/1,069,605.12 - Step 6: Final answer
x = 657,051.40
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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.