Finding the Fourth Proportional to 745,530.68, 1,118,332.93 and 213,130.14
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Solution
The fourth proportional to 745,530.68, 1,118,332.93 and 213,130.14 is: 319,705.75
Step by Step Solution
- Step 1: Write the proportion equation
745,530.68 : 1,118,332.93 = 213,130.14 : x - Step 2: Convert to fraction form
745,530.68/1,118,332.93 = 213,130.14/x - Step 3: Cross multiply
745,530.68x = 1,118,332.93 × 213,130.14 - Step 4: Simplify right side
745,530.68x = 238,350,449,610.56 - Step 5: Solve for x
x = 238,350,449,610.56/745,530.68 - Step 6: Final answer
x = 319,705.75
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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.