Finding the Fourth Proportional to 861,285.06, 1,291,927.58 and 355,859.14
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Solution
The fourth proportional to 861,285.06, 1,291,927.58 and 355,859.14 is: 533,788.71
Step by Step Solution
- Step 1: Write the proportion equation
861,285.06 : 1,291,927.58 = 355,859.14 : x - Step 2: Convert to fraction form
861,285.06/1,291,927.58 = 355,859.14/x - Step 3: Cross multiply
861,285.06x = 1,291,927.58 × 355,859.14 - Step 4: Simplify right side
861,285.06x = 459,744,237,561.08 - Step 5: Solve for x
x = 459,744,237,561.08/861,285.06 - Step 6: Final answer
x = 533,788.71
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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.