Finding the Fourth Proportional to 745,295.60, 1,028,474.04 and 405,763.12
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Solution
The fourth proportional to 745,295.60, 1,028,474.04 and 405,763.12 is: 559,934.66
Step by Step Solution
- Step 1: Write the proportion equation
745,295.60 : 1,028,474.04 = 405,763.12 : x - Step 2: Convert to fraction form
745,295.60/1,028,474.04 = 405,763.12/x - Step 3: Cross multiply
745,295.60x = 1,028,474.04 × 405,763.12 - Step 4: Simplify right side
745,295.60x = 417,316,835,309.41 - Step 5: Solve for x
x = 417,316,835,309.41/745,295.60 - Step 6: Final answer
x = 559,934.66
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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.